Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

What's a single-digit number with no value?

There are two arch enemies Messi and Ronaldo who hate each other to an extreme. One day both were going together and a Jeanie appeared in front of them. Jeanie grants 3 wishes to Ronaldo and one to Messi.

Messi replied smartly 'Give me twice whatever Ronaldo demands'.

Ronaldo asked his 1st wish 'Give me 10000 billion dollars. Soon Messi gets 2000 billion dollars.
Ronaldo asked for his 2nd wish 'Give me one mansion in every country in the world. Soon Messi gets two mansions in every country of the world?

What should be Ronaldo's third wish?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

Solve the counting riddle by identifying the number of triangles in the given picture.

I have branches, but no fruit, trunk or leaves. What am I?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?