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

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

I travel all around the world but always stay in the corner. What am I?

Can you find the hidden animal in the picture below?

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

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Find the number of squares in the below-given picture.

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

Alex is stranded on an island covered in forest.
One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.

There are cliffs around the island, so he cannot jump off.

How can the Alex survive the fire? (There are no buckets or any other means to put out the fire)