What rap group included Q-Tip and Phife Dawg?

A Tribe Called Quest

Which reptile has a tongue that splits into two at the tip for detecting scents? Who won the first-ever male surfing gold medal at the Olympics in Tokyo 2020? In 'National Lampoon's Christmas Vacation', what's the name of Clark Griswold's cousin who visits unexpectedly? What geometric figure has exactly five vertices and eight edges? What does the identity matrix look like?