Replace the question mark with the correct number in below Picture:

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Which Travels Faster? Solve below famous picture riddle:

Can you count the number of squares in the figure below?

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?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

John decided to give his bike 3 coats of paint. Which coat would go on the first?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

What does this mean?
N
A
E
L
C

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?