What runs around the whole yard without moving?

What is always in front of you but can’t be seen?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?

What does this Rebus Picture means ?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

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?

A bomb exploded in a room full of married couples and no one died. How?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?