John was piloting a plane behind a car but was never able to overtake it. Why?
If nine thousand, nine hundred nine dollars is written as $9,909, how should twelve thousand, twelve hundred twelve dollars be written?
Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?
There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.
A bomb exploded in a room full of married couples and no one died. How?
What four weights can be used to balance from 1 to 30 pounds?
Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water. How many frogs are there on the log at this moment?
I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?
Can you place three balls such that the equation shown in the picture holds true?
I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?
Can you spot what's wrong with the following sentence? PETER WAS ANGRY AT HIMSELF BECAUSE HE ACCIDENTALLY LEFT THE THE KEYS TO HIS CAR AT HIS FRIEND'S HOUSE.
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