Blake the Great -

Why don't mummies take vacations? Because they're afraid they'll relax and 'unwind.'

Maggie -

What relative will help you when you have an infection?  Auntie-biotics.

Sam -

What can you find in the center of gravity?  The letter 'V.'

Smilin' Simon -

What rock group has four men that don't like to sing?  Mount Rushmore.

Amazing Arvid -

Why did the frog cross the road?  To get to the other 'slide.'

Lausin -

What do you say to a frog that needs a ride?  Hop in.

Cool Cody -

What does a plant drive?  A Stem-i.