The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

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

Can you make a fire with just a single stick?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

Can you find the company name in the pictogram below?

What seven-letter word has hundreds of letters in it?

What always comes into a house through the keyhole?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?