A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph. Which of the trains will be farther from point A when they meet ?
How many minutes are there in Feb 2017? Note: The shortest answer is the correct answer.
If a wheel has 54 spokes, how many spaces are there between the spokes?
Move four matchsticks to the below square to form three squares?
How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?
I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?
If, 29 - 1 = 30 9 - 1 = 10 14 - 1 = 15 Based on similar logic, Can you prove that the below algebraic equation is true? 11 - 1 = 10 ?
The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school. What can a student say to prevent his being expelled from school?
What does this rebus means ? PROG WORKRESS
Can anyone tell me a word in the English dictionary which has a silent 'z'?
What seven-letter word has hundreds of letters in it?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.