Critical Thinking Puzzles

If the puzzle you solved before you solved the puzzle you solved after you solved the puzzle you solved before you solved this one, was har...

Sherlock breaks into a crime scene. The victim is the owner who is slumped dead on a chair and have a bullet hole in his head. A gun li...

What English word contains all the vowels a-e-i-o-u in alphabetical order ?

Here is a list showing the month and a number for each january = 73 February = 83 March = 51 April = 52 May = 31 June = 42 July = ...

An intelligent trader travels from 1 place to another carrying 3 sacks having 30 coconuts each. No sack can hold more than 30 coconuts...

Julia is as old as John will be when Julia is twice as old as John was when Julia's age was half the sum of their present ages. Joh...

There are 10 barrels of gold coins. In that, some of the barrels contain 1 gram gold coins and some of the barrels contain 2 gram gold coi...