Logic Riddles

Question: How do you make seven an even number?

Question: How many ears make a leap year?

Question: What is the difference between a car and a bull?

Question: A photojournalist entered a dangerous cave to take some pictures. Suddenly the cave starting shaking. The journalist had to run out but forgot which way he got inside. There are 4 tunnels leading him outside. Tunnel 1: Poisonous bats that will kill you immediately. Tunnel 2: Heat from underground that will burn anyone. Tunnel 3: Toxic gas that will kill any kind of animal. Tunnel 4: Radioactive plants that will destroy you in one touch. Which way is safe?

Question: Mary's father has three kids one is Alexis the second one is jolly who's the third?