I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

How many bananas can you eat if your stomach is empty?

Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?

In a Society, there are over 100 flats.

Flat 1 is named the first flat.
Flat 2 is named the second flat.
Flat 3 is named the third flat. And So On.....

A visitor decides to walk through all the flats, and he finds all the flats except flat 62.
Anmol later founds that the locals of the town have given it another name.

What is the name of the Flat?

Which alphabet is a part of our body?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

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

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??