A man dies of old age on his 25 birthday. How is this possible?
I am green and found in the forest and have needles instead of leaves. What am I? Hint 1: It can be used for Christmas decorations. Hint 2: I have a strong, scent that is used in air fresheners.
A plane crashed between the border of Mexico and America. Where do you bury the survivors?
Can you make a six-letter word using the letters N, A and B ?
Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?
In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?
Twice ten are six of us, Six are but three of us, Nine are but four of us; What can we possibly be? Would you know more of us? Twelve are but six of us, Five are but four, do you see? What are we?
What three numbers, none of which is zero, give the same result whether they’re added or multiplied?
A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?
Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3. (You can use one number only once)
Begin with a word, five letters to my name, Remove the first and last but I am the same Take out my middle and still, I remain. What word am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.