How many sides does a circle have?

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

which number am I?

It is a 5 letter word if you take away first letter it is something you get from sun, if you remove second letter you will get something to eat, if you remove third letter you get a word you use in pointing at and if you remove the fourth letter you get something to drink. What is it?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

Can you find out the missing number in the grid?

I look at you, you look at me I raise my right, you raise your left. What am I?

Find the value of "?" in the ball picture Riddle below:

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?