Best Brain Teasers: Cool Math Puzzles With Answers

Cool Math Puzzles With Answers 1 : Funny Logical Maths Puzzle
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If
1 = 5 ,
2 = 25 ,
3 = 325 ,
4 = 4325

Then 5 = ?

Answer & Explanation

Solution:
1

Already stated 1=5 =>5=1

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Cool Math Puzzles With Answers 2 : Simple Maths Picture Problem
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Replace the question mark with the number in this simple maths problem ?

Answer & Explanation

Solution:
18

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Cool Math Puzzles With Answers 3 : Tricky Algebra Sum Riddle
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Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

Answer & Explanation

Solution:
4100
some people might guess 5000

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Cool Math Puzzles With Answers 4 : Solve The Riddle
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A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?

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Answer & Explanation

Solution:
110
73037

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Cool Math Puzzles With Answers 5 : Most Famous Maths Puzzle
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I can prove why 1 = 2

* Lets say y = x
* Multiply through by x xy = x2
* Subtract y2 from each side xy - y2 = x2 - y2
* Factor each side y(x-y) = (x+y)(x-y)
* Divide both sides by (x-y) y = x+y
* Divide both sides by y y/y = x/y + y/y
* And so... 1 = x/y + 1
* Since x=y, x/y = 1 1 = 1 + 1
* And so... 1 = 2

How is this possible ?

Answer & Explanation

Solution:
Step 5 is invalid, because we are dividing by (x-y), and since x=y, we are thus dividing by 0. This is an invalid mathematical operation (division by 0), and so by not following basic mathematical rules

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Cool Math Puzzles With Answers 6 : Math Riddle
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Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Answer & Explanation

Solution:
1,2, & 3

1 x 2 x 3 = 6 and 1 + 2 + 3 = 6

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Cool Math Puzzles With Answers 7 : Fun Maths Puzzle
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What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

Answer & Explanation

Solution:
100. Looks hard? Don't worry, just work it backwards and you'll find it very easy.

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Cool Math Puzzles With Answers 8 : Analytical Maths Riddle
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Can you find four consecutive prime numbers that add up to 220?

Answer & Explanation

Solution:
47 + 53 + 59 + 61 = 220

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Cool Math Puzzles With Answers 9 : Friends Maths Puzzle
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Ross five friends Rachel,Monica Phoebe,Joey and Chandler lives in the same road.

Rachel lives in house:A , Monica lives in house:B , Phoebe lives in house:C , Joey lives in house:D , Chandler lives in house:E

Mathematically
B*C*D = 1260
B + C + D = 2E
2A = E

The road numbers run from 2 to 222.

Can you tell the house number of each of Ross's friends ?

Answer & Explanation

Solution:
Rachel lives in House no.36
Monica lives in House no.4
Phoebe lives in House no.9
Joey lives in House no.35
Chandler lives in House no.24

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Cool Math Puzzles With Answers 10 : Tricky Equation Puzzle
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Can you arrange four 9's and use of atmost 2 math symbols , make the total be 100?