Can you convert the number zero(0) into a positive number using just one mathematical operator ?

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

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Spot the cat in the picture below

Which wheel of car does not rotate when you turn your car right?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Can you identify the Oscar-winning movie from the rebus below?

Can you count the number of matches in the picture below ?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?