A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

There is one four-digit whole number n, such that the last four digits of n2 are the original number n

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

What is both possible and impossible at the same time?

Can you count the number of lines in the below picture?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

If two's company, and three's a crowd, then whats four and five ?

Can you find the key in the picture below?