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

Which number should replace the question mark?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

I’m tall when I’m young, and I’m short when I’m old. What am I?

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

Solve the rebus riddle in the picture below.

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?