An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

What is the unique property of the following words ?
* Revive
* Banana
* Grammar
* Voodoo
* Assess
* Potato
* Dresser
* Uneven

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Solve the puzzle by telling what does below picture means.

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

Next Number in the Series,

5, 16, 49, 104, ?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?