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?

What common phrase is represented by the below lines

Easy going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Medium going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Tough going:
Weak, 'I can't do it, I'm staying!'
Tough, 'Let's get going.'

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Women do it once a year after they turn 19 but men get to do it only once in a lifetime. What is it?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Find the number of squares in the below-given picture.

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

I add 5 to 9 and get 2. The answer is correct, so what am I?

I am an odd number. Take away a letter and I become even. What number am I?