Can you make four (4) nines (9) equal 100?

Find the next number in the series below

21 32 54 87 131 ?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

There were three women in all the swimming costumes!
One was happy and the other two were sad!
The happy one was crying and the sad ones were smiling.
Why was this?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

A very interesting trivia question for all.

Why do men's shirts have their buttons on the right side and women's have buttons on the left-hand side?

The centre of the third figure is empty. What digit should fit inside?

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?