Why do people go to bed?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

John, a 5-year-old boy, was really fond of the chocolates. He asked his Mother to give him some money to buy his favourite chocolates. His Mother gave him $45. He went to the shopkeeper and asked, "How much is one chocolate for?". The shopkeeper said $3 for one chocolate. Also, if you give me the wrappers of three chocolates, I will give you one for the exchange.
In total, how much chocolate could John eat?

Can you move 2 matchsticks to form four equal sized squares.

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

Identify The phrase in the picture.

Can you count the number of matches in the picture below ?