What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

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're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

What can go up a chimney down, but can’t go down a chimney up?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Solve the maths equation in the picture below by placing the numbers 1 through 9 into the boxes so that all the 3 equations are correct.

How many triangles can you find in this given picture?

Which is the rope you never skip with?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?