Answer:
What must you give before you can keep it?
What fastens two people yet touches only one?
You walk into a room with a match, a kerosene lamp and a fireplace. Which do you light first?
Take one royal word in the plural and make it singular by adding one letter
It's in your hand though you cannot feel it. Only you and time can reveal it.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?