You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

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

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

Why is Saturday stronger than Monday?

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

How can you drop a raw egg from a height onto a concrete floor without cracking it?

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

Paul's height is six feet, he's an assistant at a butcher's shop and wears size 9 shoes. What does he weigh?

Can you solve the maths in the below-given picture equation?

Three friends decide to distribute the soda cans they had among them. When all of them had drunk four cans each, the total number of cans that remained was equal to the cans each one of them had after they had divided the cans.

Can you calculate the total number of cans before distribution?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?