What brings you down but never up?

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

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

If 1+9+8=1, what is 2+8+9?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

What can go up a chimney down, but can’t go down a chimney up?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

What question can you never answer yes to?