input question: how to remove glue from bonding surfaces

output answer: allow the glue to dry, and gently pick off it is visible after curing. Depending on the surface, you could even use a bit of sandpaper to remove dried glue stick, just be gentle.

input question: How do I say the alphabet backwards

output answer: Begin at Z and go the other way instead of abc

input question: What's the most efficient way to dice an onion using a knife?

output answer:
First, slice the onion into thin strips, but don't cut all the way through. Turn the onion 90 degrees and repeat the process, this time cutting all the way through.