I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?
A sundial has the fewest moving parts of any timepiece. Which has the most?
There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number. What is the smallest number that stands true on the statement?
Can you move 2 matchsticks to form four equal sized squares.
John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?" While Bella does not know the answer, do you ?
Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship? ? : 3839 :: 11 : 1209
Can you place three balls such that the equation shown in the picture holds true?
What is more useful when it is broken?
What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?
What can go up a chimney down, but can’t go down a chimney up?
What does this rebus means ?
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.
