Which question did Pilate ask Jesus before telling the crowd he found no basis for a charge?

Answer: What is truth?

After Jesus spoke of testifying to the truth, Pilate asked, "What is truth?" and told the Jews, "I find no basis for a charge against Him."

““Then You are a king!” Pilate said. “You say that I am a king,” Jesus answered. “For this reason I was born and have come into the world, to testify to the truth. Everyone who belongs to the truth listens to My voice.””— John 18:37 (BSB)