Logic Riddles

Question: There was three elephants who were about to leave the home. They only had one umbrella. They all try to fit under that on umbrella. When the elephants reach their destination, none of them are the slight least wet. How could this be possible?

Question: Why is a room full of married people like an empty one?

Question: I work in a battle of wits. The battle is again with only two while an army each has. Each must take a turn in stratagem but to win the leader must die. What am I?

Question: A person has one lion, one lamb and a bundle of grass. He wants to cross a river but there is only one boat and it can't sustain the weight of more than two articles at time. Also, he has to make sure that the lion doesn't eat the lamb and the lamb doesn't eat the grass. How will he get to the other side of the river with all three intact?

Question: Which is correct "The yolk of the egg is white" or "The egg yolk is white?"