Answer:
What you do to determine the length of something
An image taken from real life
Small, containing light, You'll need it in the dark, It will provide that spark, and shine into the night. Will light up any pyre, 'Cause it can help make a fire.
What can you keep after giving it to someone?
Up on high I wave away but not a word can I say.
What sphinxes employ and players enjoy.