What is the capital of Brazil?
Brasilia
How many hearts does an octopus have?
3
How many notes are there in a musical scale?
7
Which colour pill does Neo swallow in The Matrix?
red
How many valves does the heart have?
4
In what type of matter are atoms most tightly packed?
solids
What is the scientific term for the production of light by living organisms?
bioluminescence
What is the smallest country in the world?
Vatican City
