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?

What does does this rebus picture means ?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

While house hunting in London, I came across a very good leasehold property Discussing the lease the landlady told me:

'The property was originally on a 99 years lease and two-thirds of the time passed is equal to four-fifths of the time to come. Now work it out for yourself and see how many years are to go!

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

What has one eye, but can’t see?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

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