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

which number am I?

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 ?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

Can you solve below mathematical equation?

2^1234 - 2^1233

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

Can you write down eight eights so that they add up to one thousand?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What number divided by 4 is the same as that number minus 4?