Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.

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?

Can it be possible to build a house that has all its four walls facing towards the South?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

Keyboard words are not in alphabetical order, Why?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

How can one talk without saying a single word?