When monkey rotate the gear, which mark will be hit 1 or 2 ?

How can you take 2 from 5 and leave 4?

A father's child, a mother's child, yet no one's son.

Who am I?

When it is alive we sing, when it is dead we clap our hands. What is it?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

What is black when you buy it, red when you use it, and gray when you throw it away?

10+10 and 11+11 can give you the same answer.

Explain how?

You need to remove four matchsticks from the picture below and still need to maintain the following as in the original image.
1. 1st row contains 12 matchsticks
2. 2nd row contains 12 matchsticks
3. 1st column contains 12 matchsticks
4. 2nd column contains 12 matchsticks