There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

Can you identify the hidden rebus in the image below?

Look at the picture and find out which square is not linked with any of the other squares.

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Which Travels Faster? Solve below famous picture riddle:

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

It belongs to you, but other people use it more than you do. What is it?