Can you count the number of seconds in a year? Clue: You need to bother about calculation.
What is the centre of gravity?
81 x 9 = 801. What must you do to make the this equation true?
In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?
Why are all black people so quick ?
Client Dempsey living in one of the East Coast states of the U.S. was talking to Landon Donovan, who was living in the West Coast state of the U.S. Dempsey: What time is it? Donovan: Wow, It is the same time here. How is this possible?
Prove that twice of ten is the same as twice of eleven.
I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?
Replace The Question Mark Below With the Correct Number. 2 {38} 3 4 {1524} 5 6 {3548} 7 8 {????} 9
If, 6 / 7 = 2 3 / 9 = 7 8 / 2 = 6 Then 4 / 5 = ?
Why is it very easy to weigh a fish?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.