A man lives on the fifteenth floor of an apartment building. Every morning he takes the elevator down to the lobby and leaves the building. In the evening, he gets into the elevator, and, if there is someone else in the elevator, or if it was raining that day, he goes back to his floor directly. Otherwise, he goes to the tenth floor and walks up five flights of stairs to his apartment. Can you explain why he does this?
John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?
In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?
What's the only room from which no one can enter or leave
If you say my name, I will no longer exist. What am I?
Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?
There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.
There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.
Can you find that number?
what does the below math rebus puzzle mean?
Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?
Open a Laptop which is password protected. Hint for the password is given as below:
1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches
In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.
