useless trivia: About ---------- years ago, most Egyptians died by the time they were 30.?

Questions

What is the more common name of nitrous oxide?

In what year was insulin first used to treat diabetes?

Lack of which chemical compound in the body is linked with Parkinsons disease?

What is the name of the Austrian monk who experimented with peas and is considered the founder of genetics?

What well known drug comes from the yellow cinchona plant?