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?

Can you name some countries which do not have the alphabet 'A' in them?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

What number should come in place of the question mark below?

You need to move three matchsticks to form three squares. Can you do it?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

Can you identify if it's a murder or a suicide ?

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?