Solutions A piece of evidence to solve a problem has 5 entries with similar clues

• 5-letter words
• poserProblem to be solved
• 6-letter words
• sortedProblem solved
• 14-letter words
• vicious-circleSituation where all attempts to solve a problem make it worse
• 20-letter words
• an-easy-nut-to-crackNot very difficult problem to solve
• cut-the-gordian-knotSolve a difficult problem in a direct way