Puzzles Question: Ben was 20 years old in 1980 but only 15 years old in 1985. How come? Puzzles Interview QuestionAnswer: Ben was born in the year 2000 B.C. So in 1985 B.C. he was 15 and in 1980 B.C. he was 20. Previous QuestionNext QuestionTwo sentries were on duty outside a barracks. One faced up the road to watch for anyone approaching from the north. The other looked down the road to see if anyone approached from the south. Suddenly one of them said to the other, "Why are you smiling?" How did he know that his companion was smiling?A young girl was listening to the radio. Suddenly it went off for a minute and thencame back on again. There was nothing wrong with the radio or with the program transmission from the radio mission from the radio station. She did not touch the radio controls. Why did it go off and on?