1 - What element has "H" for symbol?
2 - What are the four bases found in deoxyribonucleic acid (DNA)?
3 - Who discovered Charon, the satellite of Pluto?
4 - In the English system of measurement, what was the original value of a yard? (it is now 36 inches)
5 - What is the unit of energy?
6 - Who owns the trademark C(ompact) D(isc)?
7 - Which of these is a star?
8 - Who first observed the moons of Jupiter?
9 - Which of these was NOT the name of a US Spacecraft?
10 - Which of these is not a moon of Uranus?
11 - How many more times heavier is the Sun than the Earth?
12 - Who developed the laws of electromagnetic induction?
13 - What is a prion?
14 - What is the A380?
15 - How many pairs of chromosomes does a human usually have?
16 - To which country does the .ie domain suffix belong?
17 - Richard Feynman is a famous:
18 - For what accomplishment did Einstein receive a Physic Nobel Prize?
19 - From which country is Linus Torvalds, writer of the Linux kernel?
20 - Who allegedly invented a mechanism where a pipe fitted in spiral inside a tube will raise water or grain when turned?