Where's Waldo riddle

Question: You create your own Where's Waldo game on a piece of paper. You want your friend to find Waldo but they think you might be pulling a prank on them by not putting Waldo on the paper at all.

How can you prove to your friend that Waldo is on the paper without ruining it for them?

Question: Why do cows wear bells?

Question: When you talk about it, it disappears. What is it? A. A secret B. Silence C. Time

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?