The fastest time to break 10 plastic coat hangers is 5.70 seconds and was achieved by Nolan Ritchie (USA), in Akron, Ohio, on 8 September 2013. This record was broken on the Guinness World Record Challengers site (Challengers’ tag: maak): http://challengers.guinnessworldrecords.com/challenges/281-fastest-time-to-break-10-plastic-coat-hangers/attempts/4294
The fastest time to burst 200 balloons with a nail is 37.35 seconds and was achieved by Davide Benetello (Italy) on the set of Lo show dei record, in Madrid, Spain, on 16 February 2008.
The fastest time to build a three-level house of cards is 11.37 seconds, achieved by Binita Agrawal (Nepal), in Birgunj, Parsa, Nepal, on 23 September 2011. This record was broken on the Guinness World Record Challengers site (Challengers’ tag: agrawalbinita ): http://challengers.guinnessworldrecords.com/challenges/6-fastest-time-to-build-a-three-level-house-of-cards
The fastest time to burst three hot water bottles is 28.82 seconds by Shaun Jones (UK) at Hope House Children’s Hospice, Oswestry, Shropshire, UK, on 17 November 2011 in celebration of Guinness World Records Day.
The fastest time to burst three balloons with the back is 12 seconds, set by Julia Gunthel, aka ‘Zlata’ (Germany) on the set of Guinness World Records – Die Grossten Weltrekorde in Cologne, Germany, on 23 November 2007.
The fastest time for a team to construct a tower of 30 soft drink crates, with one member climbing to the top, is 2 min 20 sec, by Team Garmisch, of Garmisch Patenkirchen, Germany, on the set of Guinness – Die Show Der Rekorde in Munich, Germany on 23 September 1999.
The fastest time to change a wheel on a spinning car is 3 min 10 sec and was achieved by Terry Grant (UK) on the set of Lo Show dei Record in Rome, Italy on 4 March 2010. The record was part of the Italian TV show “Lo Show dei Record”
The fastest time to complete 20 calculations on Dr. Kawashima’s Brain training, was achieved by YouTube poster hirokiti55nanakusado (Japan), who submitted a time of just 7 seconds to complete the “20 calculations” component. This effectively means solving three (simple) maths problems every second.
The fastest time to complete 2 Rubik cubes simultaneously underwater is 1 minute 24 seconds and was achieved by David Calvo (Spain) on the set of Lo Show dei Record in Rome, Italy, on 1 April 2010. The record was part of the Italian TV series “Lo Show dei Record”.
The record for the fastest time to climb the highest peaks in all African countries is 5 years, and was achieved by Eamon ‘Ginge’ Fullen (UK) when he reached the Bikku Bitti Peak, Libya, on 25 December 2005. He climbed the highest peaks of each of the 53 African countries as listed in the beggining of the attempt. HRH Prince Charles endorsed the attempt. He reached the first peak, Kilimanjaro, in Tanzania, the highest peak in Africa, on 25 December 2000.