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?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

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

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

Two natural numbers have a sum of less than 100 and are greater than one.

John knows the product of the numbers and Jacob knows the sum of numbers.

The following conversation takes place between them:
John: 'I am not aware of those numbers.'
Jacob: 'I knew you wouldn't be. I am not aware myself.'
John: 'Now I know them!'
Jacob: 'Now I know them, too!'

What are the two numbers?

What Time Should the last watch show in the below figure?

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

Can you fill the blank with the correct number?

6 30 870 756030 _____

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.