math all categories
Europe
science
social studies( difficult version)
U.S history
200

20+10?

30

200

name one physical feature of Europe.

Danude river, Rhine river, English channel, Mediterranean sea, Europe plain, European alps, Pyrenees, Ural mountains, Iberian and Scandinavian peninsula

200

what type of energy does the sun produces?

solar energy

200

what's the name of the war that was against the both North Korea and South Korea also the involvement of untied states, soviet union and NATO?

The Korea war

200

what's was the most bloody war in all U.S history?

The American Civil War

300

1x3

3

300

name one country of Europe 

Albania,Andorra,Armenia,Austria,Azerbaijan,Belarus, Belgium,Bosnia and Herzegovina,Bulgaria,Croatia,Cyprus,Czechia,Denmark Estonia, Finland,France,Georgia,Germany,Greece,Hungary,Iceland,Ireland,Italy,Kazakhstan,Kosovo,Latvia,Liechtensten,Lithuania,Luxembourg,Malta,Moldova,Monaco,Montenegro,Netherlands,North Macedonia (formerly Macedonia),Norway,Poland,Portugal,Romania,Russia, San marino,Serbia,Slovakia,Slovenia,Spain.Sweden, Switzerland,Turkey,Ukraine,United Kingdom (UK),Vatican City 

300

what organism is single-celled?

bacteria and Archaea 

300

what city did Britain took from china?

Hong Kong 

300

What year did Untied States of America established as a country?

1776

400

6x6

36

400

what's the Capital of England?

London 
400

Is Pluto a planet?

No, Pluto is actually an dwarf planet due to an study in 2009

400

what war when Birds won against Humans?

The emu war 

400

What's the district of Washington D.C?

District of Columbia 

500
12x12

144

500

what's the name of the organization that has 28 members currently in Europe?

European union 

500

Which waves are the strongest?

gamma waves 

500

what's the name of the organization that was made to prevent the soviet union from spreading communism into western Europe during the cold war?

NATO

500

Name the five territories of the untied states.

 American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands.

1000

what's the square root of 49?

(7x7=49)

1000

Is turkey part of the European continent?

Yes it is

1000

what's the name of the galaxy we live in?

the Milky Way

1000

which planet is not named after an Greek or roman god?

Earth

1000

What year when trains invented in the untied states?

1804