I am quite hot but become too cold if you remove the first two letters. What am I?
When can we add 2 to 11 and get 1 as the correct answer?
Which alphabet letter is a question?
Which country gets ill every time?
The following alphametic has only one solution. Can you find it? ENLIST + SILENT + LISTEN = ANAGRAM PS: You may start the number from 0.
Prove that twice of ten is the same as twice of eleven.
This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?
Why is 6 afraid of 7?
I have branches, but no fruit, trunk or leaves. What am I?
There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence. Do you know what word is that?
How far can you walk into the woods?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki
