What question did Jesus ask Peter three times?

Answer: Do you love me?

Jesus asked Peter three times, 'Do you love me?' and told him to feed his sheep.

“When they had finished eating, Jesus asked Simon Peter, “Simon son of John, do you love Me more than these?” “Yes, Lord,” he answered, “You know I love You.” Jesus replied, “Feed My lambs.””— John 21:15 (BSB)