Misc: This is the heaviest naturally occurring element?

Questions

The word 'struthious' refers to something that resembles or is related to which animal?

The world record speed for _________ is 143.08 mph?

The world's fastest reptile (21.7 mph) is a type of what?

The worlds first chocolate candy was produced in what year?

The world's youngest parents were ___ & 9 years old.?