Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

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

How can you make number one disappear by adding something to it?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

In a school, 280 students studied chemistry, 254 students studied physics and 280 students studied biology.

97 students studied chemistry as well as physics, 138 students studied physics as well as biology and 152 students studied chemistry as well as biology.

73 students studied all the three branches.

Can you find out the total number of students?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

Can you place six X (crosses) in below board without making three in a row in any way ?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Which English verb becomes past tense just by rearranging the letters?