11) How many siblings does Elon Musk have?
12) What is the name of Elon Musk's first wife?
13) In what year was SpaceX founded?
14) What type of energy does Tesla specialize in creating?
15) Who owns the most shares of Tesla stock?
16) What is the name of the electric car manufacturer founded by Elon Musk?
17) What is the name of Elon Musk's aerospace company?
18) What year did Elon Musk become CEO of Tesla?
19) What space exploration company did Elon Musk co-found in 2000?
20) What year did Elon Musk unveil the Hyperloop concept?