You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

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?

what does the below rebus mean?

How can I get the answer 24 by only using the numbers 8,8,3,3?

You can use the main signs add, subtract multiply and divide.

When can we add 2 to 11 and get 1 as the correct answer?

Two men are in a desert. They both have packs on. One of the guys is dead. The guy alive has his pack open, and the guy who is dead has his pack closed. What is in the pack?

Which is faster, Heat or Cold ? Explain.

Can you count the number of triangles inside a triangle?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?