Singles' Day is here! Bringing a few cold jokes for everyone to enjoy~

In winter, the study room was extremely cold. A boy buried in his studies turned to a girl beside him and said, 'Junior sister, could you please give me a little electric shock? According to Joule's law, electrical energy can be converted into heat!' Without a word, the girl slapped him: 'Pervert!' The senior brother covered his face and said in delight, 'High voltage! Kinetic energy has turned into heat! It's really warm!' A couple, to make it easier to take care of their child, staggered their work hours. One day, the wife said to her husband, 'The child always asks me, why are there boys and girls, why aren't there stars during the day, why do fish live in water... What does he ask you when you take care of him?' The husband replied unhappily, 'He always asks me, where did Mom go, why hasn't she come back yet?'