Best out of five:
- Boxing ring, no gloves. First man out for the count loses.
- Game of chess
- Business scenario with starting fund of $1,000, man to make the most money by the end of 1 month. No outside help
- Who would survive the longest in Middle-Earth
- Who would you rather be stuck on an island with for 1 year (plenty of resources on the island so based on companionship rather than survival skills).