Math
Science
Periodic table
history
Human Anatomy.
100
Circumference of a circle.
2r times pi
100
how many colors are in the rainbow?
Seven: red, orange, yellow, green, blue, indigo and violet (ROYGBIV)
100
Which element has the symbol Na?
Sodium
100
Who was the first US president to live in the White House?
John adams.
100
What fibrous tissue connects the calf muscles to the calcaneus? It is named after the Greek hero who killed Hector outside of Troy.
Achillies Tendon.
200
Eight of my pets aren’t dogs, five aren’t rabbits, and seven aren’t cats. How many pets do I have?
10 (5 rabbits, 3 cats, and 2 dogs)
200
What are the three layers of the Earth?
Crust, mantle and core
200
- What is the atomic number of carbon?
6
200
What was the first nation to send an astronaut to space?
The soviet union
200
The nares are another name for which part of your nose that leads into your nasal passages?
Nostrils
300
A mouse costs $10, a bee costs $15, and a spider costs $20. Based on this, how much does a duck cost?
$5 ($2.50 per leg)
300
How many elements are on the periodic table?
118
300
How many elements are gases at room temperature? Is it 5, 8, 11 or 15?
Eleven. Hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, krypton, xenon and radon
300
Who killed Alexander Hamilton in a duel?
Aaron Bur
300
Loops, whorls, and arches are all assigned numbers in the "Henry classification system," which is used to describe and identify what trackable anatomical structures?
Fingerprints
400
Pie to the 5th decimal
3.14159
400
What is the largest desert in the world?
Antarctica
400
Silicon is not a metal and not quite a non-metal. What is it classed as?
A metalloid. Silicon sits on the staircase between metals and non-metals and behaves like both, which is the property the whole semiconductor industry is built on.
400
What was the world's first urban civilization?
The Sumerians
400
Also known as pyramidal cells due to their size and shape, Betz cells are located in which part of the human body?
Brain
500
I’ve forgotten my PIN. Six incorrect attempts locks my account: I’ve used five! Two digits are displayed after each unsuccessful attempt: “2, 0” means 2 digits from that guess are in the PIN, but 0 are in the right place. No two digits in my PIN are the same.
What should my sixth attempt be? 
6347
500
How long does it take our solar system to complete one orbit around the galactic center?
About 230 million years
500
Uranium sits in the block at the bottom of the table. What is that family called?
The actinides. Uranium is an actinide.
500
What is the real name of the founder of Buddhism, commonly known as the Buddha?
Siddartha Gautama
500
What part of the eye is also the name of the Greek goddess of rainbows, a song by the Goo Goo Dolls, and a 2001 Oscar-winning film?
Iris