2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

Do you know who was buried in John's tomb?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

what does the below rebus means?

Take one out and scratch my head, I am now black but once was red. What am I?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

What has 13 hearts but no other organs?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?