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?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

What does Alexander the Great and Winnie the Pooh have in common?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

On a magical land of Mexico , all the animal in the land are rational.

There are 10 tigers and one goat.
Tiger can eat goat but since it's a magical land , the tiger who eats the goat , turns into goat and then can be eaten by the remaining tiger(s).

If we leave them for some time then how many goat and tiger will be there , when we come back ?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

What is the longest word in the dictionary?

What is the next number in the series?

15 29 56 108 208 ?