What is the largest number you can write with just 3 digits ?
See also best riddles or new riddles.logicmathshort
Is half of two plus two equal to two or three?
Three. It seems that it could almost be either, but if you follow the mathematical orders of operation, division is performed before addition. So... half of two is one. Then add two, and the answer is three.logicmathshort
We all know that square root of number 121 is 11. But do you know what si the square root of the number "12345678987654321" ?
It's a maths magical square root series as :
Square root of number 121 is 11
Square root of number 12321 is 111
Square root of number 1234321 is 1111
Square root of number 123454321 is 11111
Square root of number 12345654321 is 111111
Square root of number 1234567654321 is 1111111
Square root of number 123456787654321 is 11111111
Square root of number 12345678987654321 is 111111111 (answer)logicmathshort
How many times can you subtract 5 from 25?
Just once, because after you subtract anything from it, it's not 25 anymore.logicmathshort
What do you get if you add 3 to 300 five times?
303 , 303 , 303 , 303 , 303cleanlogicmathshort
Would you have more money with a million dollars today or a penny today and double your money every day for 31 days?
Second option. Double your money every day for 31 days.mathshort
How many times do a clock's hands overlap in a day ?
Two planes take off at the same exact moment. They are flying across the Atlantic. One leaves New York and is flying to Paris at 500 miles per hour. The other leaves Paris and is flying to New York at only 450 miles per hour. Which one will be closer to Paris when they meet?
They will both the same distance from Paris when they meet!logicmathshort
Can you find four consecutive prime numbers that add up to 220?
47 + 53 + 59 + 61 = 220cleanmathshort
Divide 110 into two parts so that one will be 150 percent of the other. What are the 2 numbers?
44 and 66.logicmathshort
Take 9 from 6, 10 from 9, 50 from 40 and leave 6. How is it possible?
SIX - 9 (IX) = S
9 (IX) - 10 (X) = I
40 (XL) - 50 (L) = X