Before Mount Everest was discovered, what was the highest mountain in the world?

I am white when I am dirty, and black when I am clean. What am I?

O_er_t_o_

Complete the missing letters of the given word.

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?

What breaks yet never falls, and what falls yet never breaks?

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

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

What Is It?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

How many letters are in the alphabet?