Which insect produces 'royal jelly' to feed its larvae

Honey bee

Which musician cameoed as Tesla in "The Prestige"? Which classic arcade game involves destroying descending rows of aliens? What drink does Professor Slughorn serve at his gatherings? What martial art developed from Japanese jujutsu focused primarily on throwing techniques? Which creature from Elder Scrolls III: Morrowind serves as a primary means of transportation around Vvardenfell island?