John is the son of Jacob.
So,
Jacob is the_____of John's father?

1. How can we put an elephant in the refrigerator?
2. How can we put a Giraffe in a refrigerator?
3. The king of the jungle invites all the animals to a party everyone comes except for one animal, which animal?
4. You come to a crocodile-infested lake, you can't go around it, you can't co under it and you can't go over it, how do you get across?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

What's the best place to go shopping in the ocean?

How is the moon similar to a dollar?

How can a man go eight days without sleep?

When we see 2 but call 10?

What can jump higher than a building?

I have branches, but no fruit, trunk or leaves. What am I?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.