Here's your weekly digest of photographs that prove that it's a mad, mad, mad, mad world out there!
The 'Cosplayer' Julia (27, right) in the role of 'Lady Loki' pose with the her friend in the role of 'Thor' at the Frankfurt Book Fair on October 12 in Frankfurt am Main, Germany. Cosplay is a contraction of the words 'costume' and 'play' together. Cosplayer live their hobby with animated films, comics and mangas and role playing. Photograph: Thomas Lohnes/Getty Images
500 panda sculptures with different looks are on exhibition on October 13 in Nanning, Guangxi province of China. Exhibition of 500 panda sculptures that shows the idea of protecting endangered animals will last to Ocotber 30. Photograph: ChinaFotoPress via Getty Images
Catherine Walker places a stuffed toy on top of her pumpkin before the judging of the most beautiful pumpkin category during the 41st Annual Safeway World Championship Pumpkin Weigh-Off on October 13 in Half Moon Bay, California. John Hawkley of Napa, California won the 41st Annual Safeway World Championship Pumpkin Weigh-Off and broke a state record with his gigantic pumpkin weighing in at 2,058 pounds. Hawkley took home a cash prize of $12,510. Photograph: Justin Sullivan/Getty Images
Two substations decorated into pink cartoon robots are seen at Plaza 66 in Shanghai, China. Substations decorated as pink cartoon robots at Nanjing West Road are designed by industrial designers Yang Mingjie for Shanghai Design Week. Photograph: ChinaFotoPress via Getty Images
Riders compete during the "Kings of the Off-road" quad bike amateur regional race in a Siberian boggy district near the village of Kozhany, southwest of Krasnoyarsk on October 11, 2014. The race day, which consisted of four extreme tournaments on All Terrain Vehicles (ATV) and Utility Terrain Vehicles (UTV), marked the end of their summer sports season, according to organizers. Photograph: Ilya Naymushin/Reuters
Jonathan Perez and his daughter Sandra McKenzie walk in costume to New York's Comic-Con convention. The event draws thousands of costumed fans, panels of pop culture luminaries and features a sprawling floor of vendors in a space equivalent to more than three football fields in Javits Centre. Photograph: Shannon Stapleton/Reuters
A radio-controlled flying witch makes a test flight past a moon setting into clouds along the pacific ocean in Carlsbad, California. Reuters was invited to photograph the testing of the life sized device by inventor Otto Dieffenbach lll. Photograph: Mike Blake/Reuters
An employee of McDonald's Japan holds an Ikasumi (squid ink) burger at one of its fast-food outlets in Tokyo. McDonald's Japan has launched the Halloween-themed black burger, which have buns made from a flour mix of bamboo charcoal powder and black sesame to create the charred look, and beef patties marinated with squid ink sauce. The burger is priced at 370 yen ($3.40) each. Photograph: Toru Hanai/Reuters
People take part in the "Bellboy Run" category during the Berliner Kellnerlauf (Berlin Waiter Run) in Berlin. The competition was founded in Berlin years after World War Two. Photograph: Hannibal/Reuters
A visitor poses for a photograph at the Museum of Optical Illusions in St Petersburg, Russia. The organisers of the museum offer their visitors a chance to become involved in their 3D installations. Photograph: Alexander Demianchuk/Reuters
Visitors are served by an Infinium-Serve Unmanned Aerial Vehicle that is designed to serve food and wait tables, at the National Productivity Month exhibition in Singapore. The UAV, a prototype designed by firm Infinium Robotics that specializes in UAV solutions, aims to free up restaurant staff to do "higher value tasks" by accurately delivering food orders up to five kilograms to tables within a premise by means of anti-collision algorithms, according to Chief Executive Officer Woon Junyang. Photograph: Edgar Su/Reuters
A reveller takes part in a Zombie Walk in Asbury Park, New Jersey. Thousands of revellers met in Asbury park to attempt to break the Guinness World Record of the largest zombie gathering in the world and raise awareness for brain cancer. Photograph: Eduardo Munoz/Reuters
Postman Fiete Nissen, 64, poses in his trolley on the track from the coast of Dagebuell, some 180 kilometers north of Hamburg, to the tiny North Sea islands of Oland and Langeness on his last working-day. Nissen was the official postman for the islands' 139 residents for more than 37 years. Photograph: Fabian Bimmer/Reuters
