1. Which country has accumulated the most summer Olympic gold medals? 2. Who has the fastest serve recorded in men's tennis? 3. Which country has won the Hong Kong Sevens the most times? 4. Which team have the best Super Bowl record? 5. What is the biggest NBA arena? 6. Who has scored the most goals at Wembley Stadium? 7. In what sport did Finland's Lasse Viren win Olympic fame? 8. Which country has the most Tour de France winners? 9. How long is the cycling leg of the Hawaii Iron Man triathlon? 10. Who was the father of ex-Formula One champion Damon Hill? 1. USA (872). 2. Greg Rusedski (239.8km/h). 3. Fiji (9 wins). 4. Dallas Cowboys (5 wins, 3 losses). 5. The Detroit Pistons' The Palace at Auburn Hills, capacity 22,076. 6. Sir Bobby Charlton (27). 7. Athletics. 8. France (36). 9. 180kms. 10. Ex-Formula One champion Graham Hill.