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

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

How many times can you subtract the number two from the number fifty?

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

What Time Should the last watch show in the below figure?

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

why number 8549176320 is one of a kind?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?