THE SMART TRICK OF TOON RIDDLE THAT NO ONE IS DISCUSSING

Q: My skin is inexperienced and slippery, I have 4 legs and webbed feet, I hop on land and swim underwater, I like bugs and very little fish to consume. What am I?Question: Renovate the word "CAT" into the word "Pet" by switching a person letter at any given time, with Every single stage causing a valid English term.Steer clear of rushing or panick