A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

A man dies of old age on his 25 birthday. How is this possible?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

What four weights can be used to balance from 1 to 30 pounds?

When 99 is considered higher than 100?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

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

Which Number is the odd one out?

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