Misc: What's the capital of jordan?

Questions

What was Coronation Stret originally going tobe called until it was realised that it sounded like a loo cleaner?

Which Scottish chemist and physicist invented the vacuum flask?

Before he carved the heads at Mount Rushmore, who had the sculptor been asked to carve into Stone Mountain in Georgia?

Who carved the heads at Mount Rushmore?

Name of the indigenous people of Jamaica?