Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

What is the word or phrase below?
R | E | A | D

What seven-letter word has hundreds of letters in it?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Can you solve below mathematical equation?

2^1234 - 2^1233

If a wheel has 54 spokes, how many spaces are there between the spokes?

Different lights make me strange by changing me into different sizes. What am I?

Buy me, smell me or deliver me, I do not change.

Who am I?

People make me, save me, change me, raise me. What am I?

Can you write down eight eights so that they add up to one thousand?