When is it Permitted to Tell a Lie?

 https://outorah.org/p/22794/

There is, for example, a famous argument between the schools of Hillel and Shammai as to what to say about the bride at a wedding.[4] The custom was to say that “The bride is beautiful and graceful.” Members of the school of Shammai, however, were not prepared to say so if, in their eyes, the bride was not beautiful and graceful. For them the supreme value was the Torah’s insistence on truth: “Keep far from falsehood” (Ex. 23: 7).