49 free printable brain teasers with answers - ESL Vault - Free Printable

Let's solve each brain teaser step by step:

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1. Move 1 match to make this sum correct

Equation:
6 + 4 = 4

Solution:
Move one match from the first digit (6) to change it into a 5. The equation becomes:
5 + 4 = 9

So, the corrected equation is:
5 + 4 = 9

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2. Which word is the odd one out?

Words:
Snug, Dam, Pans, Keep, Live, Grid, Trap, Rats

Solution:
All the words except "Keep" are anagrams of other words in the list:
- Snug → Guns
- Dam → Mad
- Pans → Snap
- Live → Evil
- Grid → Digr
- Trap → Part
- Rats → Star

The word "Keep" does not have an anagram in the list.

So, the odd one out is:
Keep

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3. What is the missing number?

Sequence:
8735?

Solution:
This sequence appears to be based on the number of holes in the digits:
- 8 has 2 holes
- 7 has 0 holes
- 3 has 0 holes
- 5 has 0 holes

The pattern seems to alternate between a digit with holes and digits without holes. Since the last digit (5) has no holes, the next digit should have holes. The digit with the most holes is 8, which has 2 holes.

So, the missing number is:
8

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4. How many holes does this t-shirt have?

Image:
A t-shirt with bullet holes.

Solution:
A standard t-shirt typically has 4 holes:
1. Two armholes (one for each sleeve).
2. One neck hole.
3. One body hole (where the torso goes through).

The bullet holes do not count as additional holes because they are not part of the original design of the t-shirt.

So, the total number of holes is:
4

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5. If John’s son is my son’s father, who am I?

Question:
If John’s son is my son’s father, who am I?

Solution:
John’s son is also your son’s father. This means that John’s son is you. Therefore, you are John’s son.

So, the answer is:
You are John’s son.

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6. What is wrong with this room?

Image:
A room with a clock, a desk, a chair, a trash can, and a window with curtains.

Solution:
The problem lies with the clock. The clock shows 10:10, but the hands are positioned incorrectly. At 10:10, the hour hand should be slightly past the 10, and the minute hand should point precisely at 2. However, in the image, the hands are not aligned correctly for 10:10.

So, the issue is:
The clock is showing the wrong time.

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Final Answers:

1. 5 + 4 = 9
2. Keep
3. 8
4. 4
5. You are John’s son.
6. The clock is showing the wrong time.

Boxed Final Answer:
\[
\boxed{5 + 4 = 9, \text{Keep}, 8, 4, \text{You are John’s son}, \text{The clock is showing the wrong time}}
\]