Misc: What's used to make grenadine syrup?

Questions

Which leader won the battle of Austerlitz in 1805?

Who are the Nepalese soldiers who have served with the British army since world war i?

Between which two cities did the first regular passenger flights start in 1919?

Who starred in the films The Gold Rush and Modern Times?

Which 2 elements in the air were first named by Lavoisier in 1777?