I can write cow in 13 letters.

Can You?

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?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

You need to remove four matchsticks from the picture below and still need to maintain the following as in the original image.
1. 1st row contains 12 matchsticks
2. 2nd row contains 12 matchsticks
3. 1st column contains 12 matchsticks
4. 2nd column contains 12 matchsticks

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

They are three errirs in this question. Can you find them?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Give it food and it will live; give it water and it will die.

What part of the chicken has the most feathers?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135