Royalty free Challenge image: Woman with household bills

Royalty free Challenge image: Mother and Daughters Playing Tug of War

Royalty free Challenge image: Girl Playing Go

Royalty free Challenge image: Fencers Practicing

Royalty free Challenge image: England, Cumbria, Windermere, man water skiing in lake, smiling

Royalty free Challenge image: England, Cumbria, girl (13-15) water skiing in lake, smiling

Royalty free Challenge image: Two boys (10-12) climbing rock face in woodland

Royalty free Challenge image: Canada, Manitoba, Churchill, two Polar Bears sparring

Royalty free Challenge image: Horse cart race, side view

Royalty free Challenge image: Young woman kite boarding, fish eye lens

Royalty free Challenge image: Boy climbing tree

Royalty free Challenge image: Friends using tin can telephone in hedge maze

Royalty free Challenge image: Three teenage boys (16-17) skateboarding at skate park, elevated view

Royalty free Challenge image: Man and woman training in boxing ring

Royalty free Challenge image: Angry mother and daughter sulking

Royalty free Challenge image: Two boys playing basketball

Royalty free Challenge image: African businessman at meeting

Royalty free Challenge image: African businesswoman at meeting

Royalty free Challenge image: touring skier jumping down snow cornice on mountain Rax Lower Austria Austria

Royalty free Challenge image: touring skier using fun carving skies on snow field on mountain Rax Lower Austria Austria

Royalty free Challenge image: Identical female twins looking at each other over an office desk with computers

Royalty free Challenge image: Young man working with dumbbells, studio shot

Royalty free Challenge image: Portrait of a businessman showing his fists

Royalty free Challenge image: still life of golf hole ball and club