After Jesus fed the five thousand, how many baskets of leftovers were gathered?

Answer: 12

After about five thousand men ate and were satisfied, the disciples picked up twelve basketfuls of leftover broken pieces.

“They all ate and were satisfied, and the disciples picked up twelve basketfuls of broken pieces that were left over. About five thousand men were fed, besides women and children.”— Matthew 14:20-21 (BSB)