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 = ?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

I left my campsite and hiked south for 3 miles. Then I turned east and hiked for 3 miles. I then turned north and hiked for 3 miles, at which time I came upon a bear inside my tent eating my food! What colour was the bear?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

How many letters are in the alphabet?

10+10 and 11+11 can give you the same answer.

Explain how?

You bought me for dinner but never eat me. What am I?