Science
Math
English
Logic
Riddles
100

Coal, Oil, and Natural Gas are all what types of fuel:  Nuclear, Fossil, or Atomic?

Fossil Fuel

100

How many degrees is in a right angle?

90

100

How many sentences should a paragraph contain?

3-5 

100

Cannibals ambush a safari in the jungle and capture three men. The cannibals give the men a single chance to escape uneaten.

The captives are lined up in order of height, and are tied to stakes. The man in the rear can see the backs of his two friends, the man in the middle can see the back of the man in front, and the man in front cannot see anyone. The cannibals show the men five hats. Three of the hats are black and two of the hats are white.

Blindfolds are then placed over each man's eyes and a hat is placed on each man's head. The two hats left over are hidden. The blindfolds are then removed and it is said to the men that if one of them can guess what color hat he is wearing they can all leave unharmed.

The man in the rear who can see both of his friends' hats but not his own says, "I don't know". The middle man who can see the hat of the man in front, but not his own says, "I don't know". The front man who cannot see ANYBODY'S hat says "I know!"

How did he know the color of his hat and what color was it?

The man in front knew he was wearing a black hat because he knew the first man did not see two white hats and he knew that the second man did not see one white hat because if he saw a white hat, the second man would have known that his hat was black from hearing the first man's statement.

100

I make two people out of one, what am I?

A mirror

200

What is the center of an atom called?

The nucleus

200

What is the cube root of 81?

9

200

How many paragraphs should an essay contain?

5.  An introduction, 3 body paragraphs, and a conclusion.

200

A man is stranded on an island covered in forest.

One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.

There are cliffs around the island, so he cannot jump off.

How can the man survive the fire?  (There are no buckets or any other means to put out the fire)

The man picks up a piece of wood and lights it from the fire on the west end of the island.

He then quickly carries it near the east end of he island and starts a new fire. The wind will cause that fire to burn out the eastern end and he can then shelter in the burnt area.

The man survives the fire, but dies of starvation, with all the food in the forest burnt.

200

I have 4 legs but cannot walk, I have a back but cannot move.  What am I?

A chair

300

Who proved the earth orbits the sun?

Copernicus, Galileo, or Tyson

Copernicus

300

How would you identify an obtuse angle?

It is larger than a right angle and smaller than a straight line.  Or greater than 90 degrees and less than 180.

300

What is a verb?

A verb is an action.

300

You are trapped in a room with three doors.  The first opens to a raging fire.  The second a tiger that hasn't eaten in 3 weeks.  The third a ninja waits to kill you.  Which door do you choose to escape?

The tiger that hasn't eaten in weeks is no longer alive.  

300

What can run but cannot walk, has a mouth but cannot talk.  Has a bed but never sleeps, has a head but never weeps.  

A river

400

What do you call the process of breaking white light into the visible spectrum:  reflection, attraction, or refraction?

Refraction

400

What is the volume of a rectangle with a side of 8, a base of 12 and a height of 4?  

384

400

What is the definition of an adjective?

An adjective is a describing word.  Example:  Small, Tall, Green

400

You are in a race. You run very fast and after several miles finally manage to pass the person in second place.  What place are you in?

Second place

400

What can fall but has no legs

A season

500

What does the Richter scale measure?

Earthquakes

500

What is the surface area of a pyramid with a  square base with a width and a length of 4 and a triangle height of 6?

64

500

What is a conjunction?

And, of, but, 

500

You are in a room with 3 light switches which correspond to 3 bulbs in another room and you don't know which switch corresponds to which bulb.  You can only teleport to the room with the bulbs and back once.  You can NOT use any external equipment (Power supplies, resistors, etc.)  How do you find out which bulb corresponds to which switch?  

Switch on switches 1 and 2, wait a minute and switch off number 2.  One bulb will still be on, and one will be warm from being on but being just turned off.  The third will be completely cool.  Then you can figure out which switch works which light. 
500

Can you write down eight eights so that they add up to one thousand?

888+88+8+8+8=1000

M
e
n
u