logicmathWhat 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)
cleansimplelogicSay my name and I disappear.
Silence.
cleansimplelogicMr. and Mrs. Mustard have six daughters and each daughter has one brother. How many people are in the Mustard family?
There are nine Mustards in the family. Since each daughter shares the same brother, there are six girls, one boy and Mr. and Mrs. Mustard.
logicmathcleansimpleHow could you give someone $63 using six bills without using one dollar bills?
1 - $50 bill, 1 - $5 bill, 4 - $2 bills.
what am IlogicclevercleansimpleI have more than 80 keys, but I cannot open any lock. What Am I?
A piano.
logicmathtrickyHow many times can you subtract 5 from 25?
Just once, because after you subtract anything from it, it's not 25 anymore.
cleanwho am IsimplelogicEveryone in the world break me when they speak every time. Who am I?
Silence.
trickylogicWhat is the word that is spelled incorrectly in all dictionaries?
Incorrectly.
cleanlogicsimpleMr. Smith has 4 daughters. Each of his daughters has a brother. How many children does Mr. Smith have?
He has 5 children, all of the daughters have the same 1 brother.
what am IsimplelogicclevercleanI don’t have eyes, ears, nose and tongue, but I can see, smell, hear and taste everything. What am I?
A brain.
