Why do you find that most of the buildings are deprived of the 13th floor?

Can you find out the remainder when 3^300 is divided by 5?

Why is Saturday stronger than Monday?

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

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

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?

What do you see in the given picture?