Following are a number of back-translations as well as a sample translation for translators of Proverbs 26:24:

• Kupsabiny: “A person with a black stomach flatters people.
  But he conceals evil inside.” (Source: Kupsabiny Back Translation)
• Newari: “The wicked utter tasty words,
  but the thoughts in their hearts are repulsive.” (Source: Newari Back Translation)
• Hiligaynon: “An enemy is good in talking, but in-fact/[surprise particle] he thinks to cheat.” (Source: Hiligaynon Back Translation)
• Kankanaey: “An enemy speaks hypocritically (lit. fake good) in-order-to cover-up his hatred.” (Source: Kankanaey Back Translation)
• English: “Those who hate someone and are saying something very different from what they are thinking are hypocrites;
  they are only planning to harm that person.” (Source: Translation for Translators)