The ages of a father and son add up to 66. The father's age is the son's age reversed. How old could they be? (3 possible solutions).
John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not. Is a married person looking at an unmarried person ?
Count the squares in the matchstick puzzle below?
Which country gets ill every time?
The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?
Quickly Solve this riddle 7 - 4 + 3 * 0 + 1 = ?
If nine thousand, nine hundred nine dollars is written as $9,909, how should twelve thousand, twelve hundred twelve dollars be written?
I get hot but I never sweat, I cook food but I am not a chef, I have a door but you can't enter me, I have a light but I am not a lamp. Who am I?
Take away the whole and some still remain. What is it?
Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?
If you say my name, I will no longer exist. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
