logic math clever Which is the smallest number that you can write using all the vowels exactly once?
fIvE thOUsAnd (5000).
Show me the answer Share riddle logic math tricky How many sides does a circle have?
Two. The inside and the outside.
Show me the answer Share riddle logic math What is the smallest number, that can be expressed as the sum of the cubes of two different sets of numbers?
Hardy-Ramanujan discovered 1729 as a magic number. Why 1729 is a magic number?
10^3 + 9^3 = 1729
and
12^3 + 1^3 = 1729
Taxicab number Ta(2)
Show me the answer Share riddle logic math clean simple How could you give someone $63 using six bills without using one dollar bills?
1 - $50 bill, 1 - $5 bill, 4 - $2 bills.
Show me the answer Share riddle logic math tricky How many times can you subtract 5 from 25?
Just once, because after you subtract anything from it, it's not 25 anymore.
Show me the answer Share riddle logic math tricky If
1 = 5 ,
2 = 25 ,
3 = 325 ,
4 = 4325
Then 5 = ?
1
Already stated 1=5 => 5=1
Show me the answer Share riddle logic math simple clean The digits 0-9(0,1,2,3,4,5,6,7,8,9) can be rearranged into 3628800 distinct 10 digits numbers.
How many of these numbers are prime?
None. The sum of numbers from 0-9(0,1,2,3,4,5,6,7,8,9) is 45 and therefore can be divisible by 3 and 9.
Show me the answer Share riddle logic math simple clean 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.
Show me the answer Share riddle clean logic math How do you make the number 7 an even number without addition, subtraction, multiplication, or division?
Drop the "S".
Show me the answer Share riddle math logic clean simple I am an odd number; take away a letter and I become even. What number am I?
7.
Show me the answer Share riddle 