Santa was driving car zigzag on the road. Traffic inspector stopped him. Santa: Sir, I am learning the car. Inspector: without instructor ? Santa: Sir, this is a correspondence course.
Banta Singh finished his English exam and came out. His friends asked him how he had fared. He replied, "Exam was okay, except for the past tense of 'think'. I thought, thought, thought and at last, I wrote 'thunk'