What's the only room from which no one can enter or leave

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

Out of four images which one is the odd one out?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

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

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

Remove two matchsticks to make the below equation correct.

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?