Logical Thinking

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?




Similar Riddles

Which city is three-fifths chick two third cat and 50% goat?

Asked by Neha on 25 Jan 2024


Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

Asked by Neha on 26 Dec 2020

What's the only room from which no one can enter or leave

Asked by Neha on 15 Apr 2024


In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

Asked by Neha on 23 Jun 2021

The cream is heavier than Milk. True or False?

Asked by Neha on 18 Sep 2024

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

Asked by Neha on 27 Sep 2023


What number comes next in this sequence:
7 8 5 5 3 4 4 _

Asked by Neha on 06 Aug 2024

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Asked by Neha on 17 May 2021

Jessica is telling her friends this story and asks them to guess if it’s the truth or a lie: “There was a man sitting in a house at night that had no lights on at all. There was no lamp, no candle, and no other source of light. Yet, he sat in the house and read his book happily.” Her friends say she’s lying, but Jessica corrects them and says she’s telling the truth. Jessica’s story is true—but how?

Asked by Neha on 25 Jun 2025


When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Asked by Neha on 12 Oct 2025

Hot Articles

Amazing Facts

Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.