You use this to stop a boat from moving.
Anchor
What's the problem?
He has a stomach-ache.
What's the problem?
She has a cough.
What's the problem?
She has an earache.
What's the problem?
He has a headache.
An animal that has lots of legs/arms and lives under the sea.
Octopus
What's the problem?
She has a cold.
This animals has got a "house" in its body.
Turtle / Sea turtle
What's the problem?
She has a toothache.
In aquariums, this animal likes playing with balls in the water. And it uses its flippers (hands) to applaud.
Seal