input question: To round the edge of a wooden stick, you can

output answer: Use a knife to round out the edge of the stick

input question: how do you turn down the volume on a car radio?

output answer: turn the volume knob to the left.

input question: To scrub dirty dishes without a hard sponge.

output answer:
Use a mesh fruit bag like the ones that oranges come in. Instead of tossing it out, ball it up and use it as an effective scouring pad for dirty dishes.