“I'd like to challenge the board members - to take up a collection and present it to the Red Cross.”

“It's extraordinarily difficult. It forces challengers to be extremely creative or have deep pockets of their own.”

“The poet and the politician have this in common: their greatness depends on the courage with which they face the challenges of life”

“Our joint knowledge and experience will be crucial if we are to tackle the challenges in tough, Arctic seas.”

“The Fed Challenge is a great way for students to learn about monetary economics outside of a classroom.”

“Arsenal will be the main threat for the title but we will be challenging them [on the 2004-5 Premiership season]”

“For a rich and intensive prose, which with restrained compassion forms a challenging vision of man's vulnerability.”

“Single mothers particularly may qualify for Medi-Cal, but the working poor are the main challenge,”

“The challenge for U.S. negotiators will be to determine what is a continuing negotiation and what is a stall, ... and the stakes are high.”

“The great challenge for the industry is coming to terms with the fact that you can't predict the oil prices.”