Mix Chilli Powder with sugar and keep it outside the ant's hole. After eating, the Ant will search for some water in the nearby water tank. Push the Ant in. Now the Ant will go to dry itself near fire. When it reaches the fire, put a bomb in the fire. The Ant will get seriously injured. Then admit the wounded Ant in ICU. Remove the oxygen mask from it's mouth and kill the Ant.
Don't joke with students. They will do anything for 15 marks