You only get 5 one way flights to get around the world from wherever you are now.
-They don't have to be real world direct routes
-You are allowed to travel by land or sea between flights
-Each motion has to take you forward in the journey (no dawdling to see all of a country for example)
-You have to end up where you started
When someone asked me this the first time I said :
NYC > Dakar
Abidjan > Srinagar
Delhi > Bali
Sydney > Santiago
Montevideo > NYC