Answer:
With three leaves, I am just a plant. Add another leaf and everyone will want me for good luck. What am I?
I hold two meanings. With one I may be broken, with the other I hold on. What am I?
In all the world, none can compare, I am a tiny weaver; my deadly cloth so silky and fair. What am I?
I move without wings, between silken strings. I leave as you find my substance behind. What am I?
I ask no questions, but receive a lot of answers. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?