problem

As nouns the difference between mystery and problem

is that mystery is something secret or unexplainable; an unknown while problem is a difficulty that has to be resolved or dealt with.

As an adjective problem is

difficult to train or guide; unruly.

As nouns the difference between problem and complication

is that problem is a difficulty that has to be resolved or dealt with while complication is the act or process of complicating; the state of being complicated; intricate or confused relation of parts; entanglement; complexity.

As an adjective problem

is difficult to train or guide; unruly.

As nouns the difference between stuck and problem

is that stuck is one, piece, article (of a ware; often not translated in engish) while problem is problem.

As nouns the difference between problem and conundrum

is that problem is a difficulty that has to be resolved or dealt with while conundrum is a difficult question or riddle, especially one using a play on words in the answer.

As an adjective problem

is difficult to train or guide; unruly.

Problem is a related term of perplexity.

As nouns the difference between problem and perplexity

is that problem is problem while perplexity is the state or quality of being perplexed; puzzled or confused.

Problem is a related term of bafflement.

As nouns the difference between problem and bafflement

is that problem is problem while bafflement is (uncountable) the state or result of being baffled, puzzled, or confused.

As nouns the difference between constraint and problem

is that constraint is something that constrains while problem is problem.

As nouns the difference between woe and problem

is that woe is grief; sorrow; misery; heavy calamity while problem is a difficulty that has to be resolved or dealt with.

As adjectives the difference between woe and problem

is that woe is woeful; sorrowful while problem is difficult to train or guide; unruly.

As nouns the difference between case and problem

is that case is (label) abstract feature of a noun phrase that determines its function in a sentence, such as a grammatical case and a position while problem is problem.