You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

What goes through cities and fields, but never moves?

What does it mean?

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?

Can you move 2 matchsticks to form four equal sized squares.

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

What has many keys but can’t open a single lock?