Count the number of balls in picture below:

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?

I don't get anymore wetter, no matter how much rain falls on me.

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

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

Can it be possible to build a house that has all its four walls facing towards the South?

They are three errirs in this question. Can you find them?

How could a baby fall out of a twenty-story building onto the ground and live?