would alone can't be used to give advice. For me, all your sentences are examples of either implied or full conditionals. Besides, explicitly giving advice would sound stronger compared to you would examples.
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MFarooqIs "would" used in the below sentences to give advice?I sense a bit of advice giving in all but the first sentence. It certainly doesn't mean "I advise you to say that ...". It's more like offering an unsolicited opinion.