John and Jacob have been the best friends ever since they were little kids. They are very competitive. Throughout the years they have challenged each other to do both physical and mental challenges. And they completed the challenge. But one day John thought of something to challenge Jacob to do – something he could start but never finish. The average man could do it and so could Mark and they were both the same sex and the same size. It is a physical challenge. Can you figure out what it was?
Three logicians went to bar for having a drink.
The bar person asks the logicians “Do they all want to have the drink?”.
The first logician replied, ” I don’t know”.
The second logician replied, ” I don’t know”.