Clever riddles

cleanlogiccleversimple

One company had two factories, in different parts of the country, that were making the same style of shoes. In both factories, workers were stealing shoes. How, without using any security, could that company stop the stealing?
Make one factory make the left shoe, and the other make the right shoe.
73.60 %
86 votes
logicclever

A teacher decides to give a pop quiz one day but all of her students refuse to take the quiz thinking that the teacher will call off the quiz. She can give only one of these students a detention for skipping the quiz. All of the students know each other's names and if a student knows he/she is getting a detention they take the quiz. How can she threaten her students with the single detention so they all take the quiz?
She tells them that she will give the student who skips the quiz whose name comes first alphabetically a detention. This student won't skip because they know they are getting a detention if they do. The next person alphabetically will then know that they will get a detention so they won't skip either, and so on.
73.52 %
112 votes
cleanclever

There are five vowels in English language (a, e, i, o, u, and sometimes y). Easy version: Can you tell us a word contains of these 5 vowels? Hard: Can you tell us a word contains of all these 6 vowels with y? Very difficult: Can you tell us a word contains of all these vowels with y in their alphabetical order?
Unquestionably In their alphabetical order: Facetiously Abstemiously Adventitiously
73.41 %
63 votes
logicclever

A sign on the barber's door says "I shave only those who do not shave themselves." Does the barber shave himself?
There is no answer, it's a paradox. It cannot be made to work. Search: "Barber paradox"
73.31 %
49 votes