after the stunt round, both teams had one last chance to add to their points. starting with the trailing team, one partner climbed into an exercise bike or rowing machine, and the other would ride a sidecar. the rider had 40 seconds (45 seconds in the first season) to answer riddles posed by elwood, each worth 30 points. before he/she could answer, however, the exercising partner had to reach and maintain a certain threshold, such as a speed of 10 miles per hour on the bike or 100 watts of power output on the rowing machine to keep the green light on. every passed or missed question increased this threshold. later episodes added more challenges for the non-answering player, such as blowing into an anemometer strongly enough to register a certain wind speed, or drinking a shot of lemon juice.