Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Which part of London exists in France as well ?

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

If eleven plus two equals one, what does nine plus five equal?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

What is full of holes but still holds water?

What happened when the wheel was invented?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

They are three errirs in this question. Can you find them?