Prove that the below maths equation is true.

8 + 8 = 91

How can a man go eight days without sleep?

What does the below mathematical rebus mean?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

I am sure no one can have two things for dinner. what are they?

You can hear me, but you can't touch or see me.

What am I?

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?

What is the end of everything?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?