Coin touches coins

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?




Similar Riddles

Replace the question mark in the picture below.

Fill the Required Number Puzzle

Asked by Neha on 07 Jan 2026


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

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A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

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A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?

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Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Nine Numbers Riddle

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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 ?

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In the image given, you can find several triangles. Can you count them all?

How Many Triangles Are There Puzzle

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"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

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