So lets see if any of you actually remember what you learnt in school… 
I’ll propose 5 questions at a time. All the questions listed below cover different areas of Science and can be answered by a child of high school age… so lets see how you measure up!
1 - The Concorde airplane flies faster than Mach 1. Mach 1 is:
B - The speed of sound
2 - The submaxillary, sublingual, and parotid are your three pairs of major:
A - Salivary glands
B - Lacrimal glands
C - Sebaceous glands
D - Endocrine glands
:hmmmm:
3 - Its four largest moons are referred to as the “Galilean Moons”
C - Jupiter
4 - A normal adult mouth contains ______ permanent teeth.
C - 32
5 - Serotonin is a powerful vasoconstrictor found in
C - Blood serum
And no cheating!! 
