Tricky heads/tails contest

Question: What's the angle between minute hand and hour hand at a quarter past three?

Question: What does an octopus wear when it gets cold?

Question: At low tide 14 rungs of a ship are above the water, the rungs are 15 centimeters apart. each 15 mins the water rises 15 centimeters. after 2 hours and 30 mins how many rungs are above the water?

Question: What tastes better than it smells?

Question: What goes in the water black and comes out red?

Question: What loses its head in the morning and gets it back at night?