Can you replace the question mark with the correct number?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

Find the missing number in the series below

13 -21 34 -55 ? -144

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

I am sure no one can have two things for dinner. what are they?

Find the value of "a" by solving the maths equation in the picture below:

How many runs at maximum can a batsman score in a normal one-day match? Consider the fact that the conditions are ideal and there are no No Balls, no Wide Balls and no Extras in that match.

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

What is represented by this BrainBat Pattern?

EST EST EST EST

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?