If eleven plus two equals one, what does nine plus five equal?

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

What does this rebus riddle mean?

Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

Chef Andrea has to light the kitchen stoves to open her restaurant for the day. There are three stoves in the kitchen: A glass stove, a brick stove, and a wood stove. She only has one match. Which does she light up first?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

What can you see in the middle of March and April that you can never see in any other month?

The more it dries, the wetter it becomes. Can you tell what it is?