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?

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Identify the 10 differences between the two given pictures.

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

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

You bought me for dinner but never eat me. What am I?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

What can you deduce from the following BrainBat?

CRY
LMKI