What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

A man dies of old age on his 25 birthday. How is this possible?

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

Find the missing number in the sequence below:

What breaks yet never falls, and what falls yet never breaks?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

Why is it against the law for a man living in Delhi to be buried in Mumbai?

There was a strange boy who was born before his father. How can this be possible?