Following are a number of back-translations as well as a sample translation for translators of Job 12:17:

• Kupsabiny: “He takes knowledge from judges so they go empty/with nothing
  and he makes leaders to become fools.” (Source: Kupsabiny Back Translation)
• Newari: “He turns counselors into ones who have no wisdom,
  and He turns judges into fools.” (Source: Newari Back Translation)
• Hiligaynon: “He vanishes the wisdom of the advisers, and he causes- those-who-judge -to-become-crazy/fool.” (Source: Hiligaynon Back Translation)
• English: “He sometimes causes the king’s officials to no longer be wise,
  and he causes judges to become foolish.” (Source: Translation for Translators)