NOT KNOWN FACTUAL STATEMENTS ABOUT TOON ME A RIDDLE

Problem: A man states: "Brothers and sisters, have I none, but that man's father is my father's son." That's he pointing at?5. What two numbers produce a just one-digit quantity whenever you multiply them but a two-digit amount if you insert them with each other? What exactly are some great benefits of Brain Teasers for children? one. Boosts ratio