A Presentation of a selection of puzzles, brain teasers and thinking problems to exercise the brain and mind for mental health. Answers are provided for all the puzzles and problems. For both the young and old.

1. 1
“Solving Thinking Puzzles
brings benefits to the brain
and mind.
It is wise to do this mental
exercise from time to time.”

2. 2
What are Rebus Puzzles?
They are essentially little pictures, often made with
letters and words, which cryptically represent a word,
phrase, or saying. Below are two examples:
The Answer is
‘FAT CHANCE’
( ‘Fat letters’ ! )
The Answer is
‘SIDE SHOW’
( The word ‘SHOW’ is at the side! )
Go to Next Slide to start solving Rebus Puzzles

3. 3
Rebus Puzzles Set A
# 1 # 2 # 3
For each of the Puzzles, make 3 tries before checking all the answers at 1 go.
Clue
Clue
Clue
See Next Slide for the Answers

4. 4
Rebus Puzzles Set A
# 1 # 2 # 3
For each of the Puzzles, make 3 tries before checking all the answers at 1 go.
Clue
Clue
Clue
Answers
Painless operation Life after Death Search High and Low

5. 5
Rebus Puzzles Set B
# 1 # 2 # 3
For each of the Puzzles, make 3 tries before checking all the answers at 1 go.
Clue
Clue
Clue
See Next Slide for the Answers

6. 6
Rebus Puzzles Set B
# 1 # 2 # 3
For each of the Puzzles, make 3 tries before checking all the answers at 1 go.
Clue
Clue
Clue
Answers
Who’s in charge I’m bigger
than you
Camping overnight

7. 7
Deductivethinking puzzle 1
See Next Slide for the Answer
Clue
Ankit Garg was found dead in his bedroom by his maid Shweta.
Shweta told this story to Detective Sherlock Holmes : “Just after
completing the work I noticed his study light was on and I decided to
look in from the outside to see if he was in there. There was frost all
over the window, so I had to wipe it away to see inside. That was when
I saw his body. So I kicked the front door to get in to confirm my
suspicions of foul play. I called the police immediately afterward.”
Looking around the place Sherlock Holmes immediately knew that the
killer was the maid Shweta. How did Sherlock know?

8. 8
Deductivethinking puzzle 1
Answer
Clue
Ankit Garg was found dead in his bedroom by his maid Shweta.
Shweta told this story to Detective Sherlock Holmes : “Just after
completing the work I noticed his study light was on and I decided to
look in from the outside to see if he was in there. There was frost all
over the window, so I had to wipe it away to see inside. That was when
I saw his body. So I kicked the front door to get in to confirm my
suspicions of foul play. I called the police immediately afterward.”
Looking around the place Sherlock Holmes immediately knew that the
killer was the maid Shweta. How did Sherlock know?
Frost forms on the inside of the window, not the
outside. So Shweta could not have wiped it off to
discover Mr. Ankit's body.

9. 9
Deductivethinking puzzle 2
Clue
See Next Slide for the Answer
Dr Watson was making his way back to Baker Street when
he bumped into an old colleague whom he hadn't seen or
heard of for twenty years. They had been at medical
school together and had graduated at the same time.
"Where are you now?" asked Watson.
"I'm the head surgeon at London's Hammersmith
Hospital," came the reply.
" A n d this little girl," said Watson. "Is she yours?"
"Yes, I've been married for eight years now."
The little girl tugged on Watson's jacket. "My name's
M a r y , " she said.
"Fancy that," replied Watson patting her on the head.
"The same name as your m o t h e r . "
How did Watson know that

10. 10
Deductivethinking puzzle 2
Clue
Answer
Dr Watson was making his way back to Baker Street when
he bumped into an old colleague whom he hadn't seen or
heard of for twenty years. They had been at medical
school together and had graduated at the same time.
"Where are you now?" asked Watson.
"I'm the head surgeon at London's Hammersmith
Hospital," came the reply.
" A n d this little girl," said Watson. "Is she yours?"
"Yes, I've been married for eight years now."
The little girl tugged on Watson's jacket. "My name's
M a r y , " she said.
"Fancy that," replied Watson patting her on the head.
"The same name as your m o t h e r . "
How did Watson know that?
Mary who is now a surgeon was
in the same class as Dr Watson
in medical school.

11. 11
Deductivethinking puzzle 3
D r Watson passed a sheet of paper to his
colleague. "Look at this, Holmes," he said.
"It's a sequence of letters. The
last two of the sequence are missing and I'm
damned if I can figure out what they are!"
Holmes glanced at the note paper and
immediately supplied Watson
with the missing letters. Can you?
S E Q U E N C E R E A D S :
J F M A M J J A ?
Clue
See Next Slide for the
Answer

12. 12
Deductivethinking puzzle 3
D r Watson passed a sheet of paper to his
colleague. "Look at this, Holmes," he said.
"It's a sequence of letters. The
last two of the sequence are missing and I'm
damned if I can figure out what they are!"
Holmes glanced at the note paper and
immediately supplied Watson
with the missing letters. Can you?
S E Q U E N C E R E A D S :
J F M A M J J A ?
Clue
Answer
The missing letters are S
and O . (Each letter is the initial letter
of the months of the year: January.
February, March etc.

13. 13
Observation power
See Next Slide for the Answer
Which one of the symbols is the Odd One Out?
Can you do it in less than 1 minute?

14. 14
Observation power
Answer
Which one of the
symbols is the Odd One
Out?
Can you do it in less
than 1 minute?

15. 15
‘4 Pics 1 Word’ Puzzles
For each of the ‘4 Pics 1 Word’ Puzzles, deduce the word that has
a connection or bearing with all the pics.
An Example ( A 6-Letter Word)
POWDER
Now try the following : ‘4 Pics 1 Word’ Puzzles # 1 - # 3 ( Make 3 guesses
for each before looking at the answers.) ( 6-Letter Words )
See
Next
Slide
for
the
Answers
after
writing
down
all
your
9
guesses
# 1 # 2 # 3

16. 16
‘4 Pics 1 Word’ Puzzles
For each of the ‘4 Pics 1 Word’ Puzzles, deduce the word that has
a connection or bearing with all the pics.
An Example ( A 6-Letter Word)
POWDER
Now try the following : ‘4 Pics 1 Word’ Puzzles # 1 - # 3 ( Make 3 guesses
for each before looking at the answers.) ( 6-Letter Words )
Answers
# 1 Shield # 2 Gutter # 3 Spread

17. 17
‘4 Pics 1 Word’ Puzzles 7-Letter Words
For each of the ‘4 Pics 1 Word’ Puzzles, deduce the word that has a
connection or bearing with all the pics. (3 Guesses for each pic before next Slide.)
See
Next
Slide
for
the
Answers
after
writing
down
all
your
12
guesses
# 1 # 2
# 3 # 4

18. 18
‘4 Pics 1 Word’ Puzzles 7-Letter Words
For each of the ‘4 Pics 1 Word’ Puzzles, deduce the word that has a
connection or bearing with all the pics. (3 Guesses for each pic before next Slide.)
Answers
# 1 # 2
# 3 # 4
Shampoo
Antenna
Italian
Emotion

19. 19
‘4 Pics 1 Word’ Puzzles 8-Letter Words
For each of the ‘4 Pics 1 Word’ Puzzles, deduce the word that has a
connection or bearing with all the pics. (3 Guesses for each pic before next Slide.)
# 1 # 2
# 3 # 4
See
Next
Slide
for
the
Answers
after
writing
down
all
your
12
guesses

20. 20
‘4 Pics 1 Word’ Puzzles 8-Letter Words
For each of the ‘4 Pics 1 Word’ Puzzles, deduce the word that has a
connection or bearing with all the pics. (3 Guesses for each pic before next Slide.)
# 1 # 2
# 3 # 4
Sorcerer
Answers
Blizzard
Circular
Tranquil

21. 21
Lateral Thinking Q 1
See Next Slide for the Answer
Clue
Assume there are approximately
5,000,000,000 (5 billion) people on Earth.
What would you estimate to be the result,
if you multiply together the number of
fingers on every person's left-hands? (For
the purposes of this exercise, thumbs
count as fingers, that is, five fingers per hand.)
If you cannot estimate the number then try
to guess how long the number would be.

22. 22
Lateral Thinking Q 1
Answer
Clue
Assume there are approximately
5,000,000,000 (5 billion) people on Earth.
What would you estimate to be the result,
if you multiply together the number of
fingers on every person's left-hands? (For
the purposes of this exercise, thumbs
count as fingers, that is, five fingers per hand.)
If you cannot estimate the number then try
to guess how long the number would be.
The product of the number of fingers on the left-hands of every
person is zero. It only takes one person to have no fingers on their
left hand for the product to be zero, because anything multiplied
by zero equals zero.

23. 23
See Next Slide
for the Answer
Lateral Thinking Q 2
Clue
A woman has incontrovertible proof in
court that her husband was murdered by
her sister. The judge declares, "This is the
strangest case I've ever seen. Though it's
a cut-and-dried case, this woman cannot
be punished.“ Why?

24. 24
Answer
Lateral Thinking Q 2
Clue
A woman has incontrovertible proof in
court that her husband was murdered by
her sister. The judge declares, "This is the
strangest case I've ever seen. Though it's
a cut-and-dried case, this woman cannot
be punished.“ Why?
The sisters are Siamese twins.
Sentencing one of the twins to death
or life imprisonment would do
likewise to the other twin.

25. 25
Lateral Thinking Q 3
Clue
A hunter aimed his gun carefully and fired.
Seconds later, he realized his mistake.
Minutes later, he was dead. Why?
( He did not die of a heart attack or any other
illness.)
See Next Slide
for the Answer
Low Calibre
Rifle

26. 26
Answer
Lateral Thinking Q 3
Clue
A hunter aimed his gun carefully and fired.
Seconds later, he realized his mistake.
Minutes later, he was dead. Why?
( He did not die of a heart attack or any other
illness.)
He shot an elephant with a low calibre
rifle. Not powerful enough to kill it, the
elephant became enraged and trampled him.
Low Calibre
Rifle

27. 27
See Next Slide for the Answer
Set 1
Spot the Mistake in the Picture

28. 28
Spot the Mistake in the Picture
Answer
Set 1

29. 29
See Next Slide for the Answer
Spot the Mistake in the Picture
Set 2

30. 30
Answer
Spot the Mistake in the Picture
Set 2

31. 31
Spot the Mistake in the Picture
Set 3
See Next Slide for the Answer

32. 32
Spot the Mistake in the Picture
Set 3
Answer
If we focus our attention on the garage door,
and the size of the car, we see that there is no
way the door will close.

33. 33
See Next Slide
for the
Answer
Spot the Mistake in the Picture
Set 4

34. 34
Answer
Spot the Mistake in the Picture
Set 4
One of the faucet handles
is missing and there’s a
light bulb instead!

35. 35
Spot the Mistakes in this Set 5
See Next Slide
for the
Answers

36. 36
Spot the Mistakes in this Set 5
Answers
The 5th Mistake
The sentence has only four
things wrong – not five!
repeated

37. 37
See Next Slide for the Answer
Math Puzzle 1
Think Out of The Box!
Referring to the
diagram shown,
what should be the
number at the spot
marked by the “?”

38. 38
Answer
Math Puzzle 1
Referring to the diagram
shown, what should be the
number at the spot marked by
the “?”
The Answer is 61
2 + 3 → 2² + 3² =13
3 + 4 → 3² + 4² = 25
4 + 5 → 4² + 5² = 41
So, 5 + 6 → 5² + 6² = 61

39. 39
Math Puzzle 2
See Next Slide for the Answer
???
How can you get
the result
36
Using all the
numbers shown,
each number only
once?

40. 40
Math Puzzle 2
Answer
???
How can you get
the result
36
using all the
numbers shown,
each number only
once?
7*(5+3) – 20

41. 41
Math Puzzle 3
See Next Slide for
the Answer

42. 42
Math Puzzle 3
the Answer
If you consider the smallest
square to be of 1 unit;
Then there are;
6 squares of 1 unit side,
8 squares with side 2 unit,
2 squares with side 3 unit
and
1 square with side 4 unit.
No. of squares = 6 + 8 + 2
+ 1 = 17
Therefore;
Number of squares = 17

43. 43
LIFE Lessons from Jokes and Humor
Each of the Jokes is followed by a LIFE Lesson at the end. The LIFE Lesson has
been scrambled in both letters and words. Your task is to unscramble the letters
and then the words to reveal the LIFE Lesson. An Example is given below.
LIFE Lesson | dlfnmiu | adn | asoaoiscnet | ndki | eb |
Unscrambling the words: mindful and compassionate kind be
Rearranging the words, get the LIFE Lesson:
be mindful, kind and compassionate
JOKE 1 The Psychiatrist
A wife went to consult a psychiatrist about her husband. She told the
psychiatrist, “ My husband is acting in a very weird manner. He drinks his
tea using a paper mug. After finishing the drink, he eats the mug leaving
only the handle!”
The psychiatrist listened intently and then commented, “This is indeed
strange. The handle is the best part to eat.”
LIFE Lesson
esglbnis | ot | eb | dyob | ni | si | a | gtrae | elhathy | midn | nad
See Next Slide for the Answer and JOKE 2

44. 44
LIFE Lessons from Jokes and Humor
JOKE 2
to be healthy in body and mind is a great blessing
Answer
JOKE 2 “Beer and pretty girls!”
Six-year old Ah Giat was lost in town. He approached a policeman and told
him, “Sir, I have lost my father. Can you please help me find my father?”
“Sure boy,” the policeman replied. “What’s your father like?”
Ah Giat, without thinking blurted out, “Beer and pretty girls!”
LIFE Lesson
mxylparee | ahtt | aaecrthcr | a | muts | si | srtnpae | hswo
See Next Slide for the Answer and JOKE 3
JOKE 1 The Psychiatrist
A wife went to consult a psychiatrist about her husband. She told the psychiatrist, “
My husband is acting in a very weird manner. He drinks his tea using a paper mug.
After finishing the drink, he eats the mug leaving only the handle!”
The psychiatrist listened intently and then commented, “This is indeed strange. The
handle is the best part to eat.”
LIFE Lesson
esglbnis | ot | eb | dyob | ni | si | a | gtrae | elhathy | midn | nad

45. 45
LIFE Lessons from Jokes and Humor
See Next Slide for the Answer and JOKE 4
Answer
parents must show a character that is exemplary
A rather fat teacher once asked the class, “Children what does the chicken give you?”
The kids all roared out, “Eggs!”
“Very good,” the teacher complimented the students. “Now what about the pig?” the
teacher asked. The kids shouted, “Bacon!”
“Very good,” the teacher said. “ And what does the fat cow give you?”
Johnny the naughty boy immediately shouted out,
“Homework!”
JOKE 3 Ill-Mannered Student
JOKE 2 “Beer and pretty girls!”
Six-year old Ah Giat was lost in town. He approached a policeman and told
him, “Sir, I have lost my father. Can you please help me find my father?”
“Sure boy,” the policeman replied. “What’s your father like?”
Ah Giat, without thinking blurted out, “Beer and pretty girls!”
LIFE Lesson
mxylparee | ahtt | aaecrthcr | a | muts | si | srtnpae | hswo
LIFE Lesson
si | sha | uder | si | dba | tsheor | hwo | dan | eidsdkil |
lrcyenati | yb | eon | nmsnera

46. 46
JOKE 4 Flight of Stairs?
JOKE 3 Ill-Mannered Student
Answer
one who is rude and has bad manners
is certainly disliked by others
Fredrik and Gustaf, two burly men were walking home late one night from the local
pub after a couple of hours boozing away. As they headed down the railway tracks,
Fredrik mumbled, “This is the longest flight of stairs I have ever climbed in my life.”
Gustaf said, “Yeah. But it’s not so much the long flight of stairs that bothers me so
much. It’s these low stair railings that are hurting my back.”
LIFE Lesson
nca | rsetoddti | itxtaonnoici | orsnep | ot | ahve | elda | nnkgtiih | a
See Next Slide for the Answer
A rather fat teacher once asked the class, “Children what does the chicken give you?”
The kids all roared out, “Eggs!”
“Very good,” the teacher complimented the students. “Now what about the pig?” the
teacher asked. The kids shouted, “Bacon!”
“Very good,” the teacher said. “ And what does the fat cow give you?”
Johnny the naughty boy immediately shouted out,
“Homework!” si | sha | uder | si | dba | tsheor | hwo | dan | eidsdkil |
lrcyenati | yb | eon | nmsnera
LIFE Lesson

47. 47
LIFE Lessons from Jokes and Humor
Answer
intoxication can lead a person to have distorted thinking
I hope the 4 Humor Pieces and Unscrambling tasks have
1 brought you some cheer and benefit.
2 given you a mental workout!
3 imparted some LIFE Lessons.
Fredrik and Gustaf, two burly men were walking home late one night from the local
pub after a couple of hours boozing away. As they headed down the railway tracks,
Fredrik mumbled, “This is the longest flight of stairs I have ever climbed in my life.”
Gustaf said, “Yeah. But it’s not so much the long flight of stairs that bothers me so
much. It’s these low stair railings that are hurting my back.”
LIFE Lesson
nca | rsetoddti | itxtaonnoici | orsnep | ot | ahve | elda | nnkgtiih | a
JOKE 4 Flight of Stairs?

48. 48
Matchstick Puzzle 1
See Next Slide for the Answer
Move only one matchstick so that the equation
becomes correct

49. 49
Matchstick Puzzle 1
Answer
Move only one
matchstick so that the
equation becomes
correct

50. 50
Matchstick Puzzle 2
See
Next
Slide
for
the
Answer
Move 3 matchsticks to make 3 equal squares.

51. 51
Matchstick Puzzle 2
Answer
Move 3 matchsticks to
make 3 equal squares.

52. 52
Matchstick Puzzle 3
See
Next
Slide
for
the
Answer
Move only 2 matchsticks
to show the time 4:30.

53. 53
Matchstick Puzzle 3
Answer
Move only 2
matchsticks
to show the time
4:30.

54. 54
Picture Puzzle - Test Your Eye Power
Can you
find 6
Hidden
Words in
the
Picture in
less than
2
minutes?
See Next Slide if you need to know what
the 6 Hidden Words are

55. 55
Picture Puzzle - Test Your Eye Power
The 6
Hidden
Words
See Next Slide for the Answers
ICE
FROST
TOBOGGAN
CHILL
COLD
SLED

56. 56
Picture Puzzle - Test Your Eye Power
The 6
Hidden
Words
Answers
ICE
FROST
TOBOGGAN
CHILL
COLD
SLED

57. 57
# 1
Rhyming Riddles – Creative Thinking
Clue
See Next Slide for the Answer

58. 58
# 1
Rhyming Riddles – Creative Thinking
Clue
Answer A Tree

59. 59
#
2
Clue
See Next Slide for the Answer
Rhyming Riddles – Creative Thinking

60. 60
#
2
Clue
Answer Death
Rhyming Riddles – Creative Thinking

61. 61
# 3
See Next Slide for the Answer
Rhyming Riddles – Creative Thinking
Clue Answer rhymes with the
word describing the pic

62. 62
# 3
Answer Flag (Rhymes with ‘Drag’)
Rhyming Riddles – Creative Thinking
Clue Answer rhymes with the
word describing the pic

63. 63
# 4
Clue
Rhyming Riddles – Creative Thinking
See Next Slide for the
Answer

64. 64
# 4
Clue
Rhyming Riddles – Creative Thinking
Answer
Hedgehog

65. 65
# 5
See Next Slide for the Answer
Clue
Rhyming Riddles – Creative Thinking

66. 66
# 5
Answer
Clue
Rhyming Riddles – Creative Thinking
Answer Coffee

67. 67
Mental and
Visual Skills 1
How many
differences can
you spot
between the 2
pictures within 2
minutes?
See Next Slide for the
Answers

68. 68
Mental and
Visual Skills 1
How many
differences can
you spot
between the 2
pictures within 2
minutes?
Answers
There are 5
Differences as
shown

69. 69
Mental and
Visual Skills 2
How many
differences can
you spot
between the 2
pictures within 2
minutes?
See Next Slide
for the Answers

70. 70
Mental and
Visual Skills 2
How many
differences can
you spot
between the 2
pictures within 2
minutes?
Answers
There are 5
Differences as
shown

71. 71
With Metta,
Bro. Oh Teik Bin
The End