The best word is "problem". Translated, it means "for the solution" (otherwise it would be "contra-blem" )

“The only problem we really have is we think we're not supposed to have problems! Problems call us to higher level- - face & solve them now!” — Tony Robbins

“There's no coming to consciousness without pain” — Carl Jung

Did you know? The muzzle of a lion is like a fingerprint - no two lions have the same pattern of whiskers.  

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The Timeless Elegance and Benefits of a Silk String Bracelet | #chinese shopping centre #bracelet #silk string bracelet

“A hero is an ordinary person doing things in an extra ordinary way.” — Christopher Reeve

“Don't criticize what you can't understand.” — Bob Dylan

Did you know? One quarter of the bones in your body are in your feet.