They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Which letter of the alphabet has the most water?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?

I have an eye but still cannot see.

Who am I?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

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 are two guys standing face to face in a room. On a wall, there is a clock. One of those is a prophet. He tells the other guy that he will be stabbed in the back in five minutes.

Shocked to hear that, the other guy stares at the clock. Just after the five minutes, he is stabbed on the back. Can you tell what happened?