I’m tall when I’m young, and I’m short when I’m old. What am I?

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

What do you think with the below Picture ?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

What question can you never answer yes to?