Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

How far can you walk into the woods?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

A woman shoots her husband.

Then she holds him under water for over 5 minutes.

Finally, she hangs him.

But 5 minutes later they both go out together and enjoy a wonderful dinner together.

How can this be?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

No matter how little or how much you use me, you change me every month. What am I?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?