1 . Mostafa Ismail
The worlds largest biceps belong to Mostafa Ismail (Egypt) and were measured for left arm flexed at 64.77 cm (25.5 in) and non-flexed 62.23 cm (24.5 in) and for right arm flexed at 63.5 cm (25 in) and non-flexed 60.96 cm (24 in). The measurements were taken in Franklin, Massachusetts, USA which is where Mostafa now resides. The 57th edition of the worlds best-selling copyright book, Guinness World Records, is out today (13 September 2012).
2 . sportswoman
The heaviest competing sportswoman living is sumo wrestler Sharran Alexander (UK) of London, UK, who weighs 203.21 kg (448 lbs).
3 . Johanna
The oldest gymnast is Johanna Quaas (b 20 November 1925, Germany) who, at the age of 86 years, is a regular competitor in the amateur competition Landes-Seniorenspiele, staged in Saxony, Germany. She performed a floor-and-beam routine on the set of Lo Show dei Record in Rome, Italy.
4 . The tallest mohican
The tallest mohican measures 113.5 cm (44.68 in) and belongs to Kazuhiro Watanabe (Japan). The length was verified at Bloc de lart hair salon, Shibuya, Tokyo, Japan.
5 . The tallest living dog
The tallest living dog is
6 . The tallest living horse
The tallest living horse is Big Jake, a nine-year-old Belgian Gelding horse, who measured 20 hands 2.75 in (210.19 cm, 82.75 in), without shoes, at Smokey Hollow Farms in Poynette, Wisconsin, USA.
7 . The shortest bull
The shortest bull is Archie, a 16-month-old Dexter Bull, fully registered in the Northern Ireland livestock inventory, in County Antrim, Northern Ireland, who measured 76.2 cm (30 in) from the hoof to the withers.
8 . The tallest donkey
The tallest donkey living is Oklahoma Sam, a four-year-old American Mammoth Jackstock, who measured 15.3 hands (155.45 cm; 5 ft 1 in) tall on 10 December 2011, and is owned by Linda Davis of Watsonville, California, USA.
9 . The heaviest rideable bicycle
The heaviest rideable bicycle weighs 750 kg (1650 lb) and was built by Wouter van den Bosch (Netherlands) and ridden in Arnhem, Netherlands.
10 . Largest collection of Barbie dolls
Largest collection of Barbie dolls : Bettina Dorfmann (Germany) has 15,000 different Barbie dolls. She has been collecting Barbies since 1993.