>> got murchison-- murchison, olduvai, columbia, kali gandaki. food and gulp and guzzle your drinks. but i know when you eat too much you gorge yourself, so i'm gonna go with b, gorge, final answer. >> and also a geographic formation, a gorge. that's right. >> all right. >> good enough for $3,000. but now we're up to that threshold question of $5,000. >> okay. >> so here it is. it's millionaire math time. the company that makes grape nuts cereal plus the last name of bartender sam on "cheers" equals what "beerbongs & bentleys" rapper? >> well, let's see, i did watch a lot of "cheers" when i was in college and it was on late and i was up late studying, and i know sam's last name was malone. not too familiar with post malone's music, but i'm gonna go with--yeah, grape nuts is post. sam, the bartender, is sam malone. i'm gonna go with c, post malone, final answer. >> you got it right.