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 make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.

what's the probability of getting a king or a queen from a pack of 52 cards?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

What is the last thing you take off before bed?

The below mentioned letters have been placed in a order using a logic.

DEAD, BALL, FEAR, SHOP

Can you find the logic?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Find the next number in the sequence

1, 2, 6, 21, 88, __?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

What English word has three consecutive double letters?