What happened when the wheel was invented?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

A journalist was investigating a sacred cult in the jungles of Africa when he was caught by one of the person. He was confined in a cave till the leader arrived. The leader told him that he need to tell him a statement. If he thinks the statement is true, then the journalist head will be chopped off. If he thinks that the statement is false, his head will be smashed with a hammer.

What statement did the journalist make to survive?

Why are all black people so quick ?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.