Static methods vs singletons [duplicate]

This question already has answers here: Closed 11 years ag开发者_开发百科o.

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Why choose a static class over a singleton implementation?

Static methods vs singletons.

Could it be determined choice here?

What are conditions in which one of these approaches is definetely more suitable then other?

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Static methods follow the "low coupling and high coherence"-rule more than singletons do. (As long as their implementations don't rely on static member variables.)

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If the static methods solve the same problem as the singleton, then why complicate and write a singleton?

Otherwise, why choose something that solves the wrong problem?