A maths symbol is hidden in the below Bar Graph. Can you decipher it?

The following question it puts forth you:

25 - 55 + (85 + 65) = ?

Then, you are told that even though you might think it's wrong, the correct answer is actually 5!

Whats your reaction to it? How can this be true?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

Why Aeroplane windows are round?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

Can you replace the question mark with the correct number?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Solve the mathematical equation in the picture below.

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?