PUZZLES AND RIDDLES IN MATHS

A puzzle is a problem that challenges one's ability to think out of the box, and come up with the right solution. Puzzles can be thought-provoking and entertaining, too. In recent times, puzzles have become the base for mathematical research. Arithmetic and logical puzzles have served this purpose well.

A riddle can be defined as an interrogatory statement that has two meanings, and is generally asked as a puzzle to be solved by the observant. Most riddles have a clue within themselves, and it lies in the creativity and presence of mind of the observer to crack it.
⇒ Ryan can place 8 large boxes or 10 small boxes into a carton for transporting them. In one shipment, he sent a total of 96 boxes. If there are more large boxes than small boxes, how many cartons did he ship?
11 cartons.
7 large boxes (7 × 8) = 56 boxes
4 small boxes (4 ×10) = 40 boxes
11 total cartons consisting of 96 boxes

⇒ Can you find the numbers A, B, C, and D so that the following calculation is proved?
A B C D x 4 = D C B A
A = 2, B = 1, C = 7, and D = 8.

⇒ How can you add eight 8s to get the number 1,000 using only addition?
888 + 88 + 8 + 8 + 8 = 1,000

⇒ What number comes next?
1, 3, 6, 10, 15, 21, ___
Answer is 28!
As you see, we get 3 by adding 2 to the first digit 1. Similarly, when we add 3 to the next digit, 3 we get 6, and so on.

⇒ If
1 = 5
2 = 25
3 = 325
4 = 4,325.
Then 5 = ?
1



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