The day after tomorrow will be three days before Tuesday. Can you find out what is today?

Name a key which is hardest to turn.

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

What is the Surname of Barbie Doll?

Can you guess the name of the month by looking the below rebus ?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

what does this picture(rebus) riddle means ?

By using 'because' continuously three times, can you make an English statement ?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

Three people enter a room and have a green or blue hat placed on their heads. They cannot see their own hat but can see the other hats.
The colour of each hat is purely random. They could all be green, blue, or any combination of green and blue.
They need to guess their own hat colour by writing it on a piece of paper, or they can write 'pass'.
They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.
If at least one of them guesses correctly they win $10,000 each, but if anyone guesses incorrectly they all get nothing.
What is the best strategy?