Answer:
Don't do this in the shallow end.
A certain wizard resided in a city made from this gemstone.
I am the yellow hem of the sea's blue skirt.
I have legs but never walk, I may have flowers but no soil, I hold food but never eat.
At first I am a yellow weed in the lawn, and then the wind blows, and my white feathers are gone. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?