Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

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

which number am I?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

If a wheel has 54 spokes, how many spaces are there between the spokes?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Can you identify the hidden rebus in the image below?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

What word is represented by this rebus?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT