How Many Pluses

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?




Similar Riddles

We have arranged an array of numbers below. What you have to do is use any kind of mathematical symbol you know excluding any symbol that contains a number like cube root. You can use any amount of symbols but you have to come up with a valid equation for all of them.

0 0 0 = 6
1 1 1 = 6
2 + 2 + 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

Asked by Neha on 19 Sep 2025


How many letters are in the alphabet?

Asked by Neha on 01 Sep 2025

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Find the Mistakes

Asked by Neha on 12 Aug 2021


A couple went on a climbing trip. But only the husband returned from the vacation and said that his wife slipped off while climbing and died. On investigating, the local sheriff arrested him saying, 'Your travel agent called. You murdered your wife.'

The man did not inform anyone about the trip. Then how was the agent so sure that it was a murder?

Asked by Neha on 17 May 2026

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

Asked by Neha on 23 Jan 2021

Through your logical capabilities, can you make 7 an even?

Asked by Neha on 04 Mar 2026


I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

Asked by Neha on 06 Apr 2025

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Asked by Neha on 10 Jan 2025

What can you deduce from the following BrainBat?

CRY
LMKI

Asked by Neha on 26 Aug 2024


Can you move 2 matchsticks to form four equal sized squares.

Make four Square Riddle

Asked by Neha on 17 Dec 2020

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Amazing Facts

Out of the Box

The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.