Geocacher stacked 12 wooden spools in a single tower.
Suresh Gaur touched a string with his feet 100 times in 35.15 seconds while holding a headstand.
Doug McManaman fired seven shots with a .22-caliber rifle, hitting a thread from 50 yards away.
NOTE: Shooting is dangerous and should only be attempted by trained professionals.
Nadia Poulin has exchanged 3,709 messages back and forth with a friend
using her cellphone.