Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

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?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

O_er_t_o_

Complete the missing letters of the given word.