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I'm trying to create two riddles for a D&D campaign and I'm worried they aren't clear. I'd like people to try and solve them and give suggestions on how to improve them if possible. It's set in a medieval theme. They are inscribed on a large tower and have already deciphered the first riddle where the answer was a candle.

The first riddle was

I'm tall when young, short when old, detest the wind, but never get cold

This is one I just swiped from another site and is pretty old I think. They basically solved it in 10 seconds.

The next two riddles (which are my own invention) are

Riddle 2:

Brother of Dreams,
Son of Fowl,
Cousin of Well,
Father of How

Riddle 3:

I float on the wind,
Cry in a storm,
can hold every secret,
or know every shore.

when they find the answers to these last two riddles, they need to collect the objects that were the answers to the above riddles and put them into small openings in the door to make it open.

Possible answer to Riddle 2:

Is it Water? Float on the wind as clouds, Cry in a storm as rain, hold every secret (depths of the ocean), and know every shore (coastlines).

I think #2 might be

a cloud

I float on the wind

Clouds float on the wind.

Cry in a storm,

Clouds let out water when it rains.

can hold every secret,

Secrets are clouded in mystery.

or know every shore.

Clouds can appear everywhere in the world.

I'm new here, but I have a potential answer for the Brother of Dreams riddle. (#2 now)

A quill

Brother of Dreams

It's constantly next to "Dreams" - it's used to write books

Son of Fowl

Comes from a bird

Cousin of Well

Related to an ink "well"

Father of How

The word "How" is (was) written with a quill, so it was created by a quill, similar to a father and mother creating a child

I know this is a bit of a stretch, but it fits with the theme of the candle being an ordinary object.

Possible answer to 1:

It is a bird (to symbolize Phobetor, the Greek God of Fear)

Brother of Dreams

According to Ovid, Phobetor was one of the brothers of Morpheus, God of Dreams

Son of Fowl

Phobetor's father, Hypnos, the God of Sleep, is often portrayed as having a bird wing coming out of the side of his head

Cousin of Well

Okay, stick with me here. This line references Lethe, the River of Forgetfulness in the Greek underworld. Lethe is the daughter of Eris, Goddess of Discord, who is the sister of Hypnos. The word "well" is used to signify "all is well", which is the mood of all those who decide to bath in Lethe's water and forget all their memories of the outside world.

Father of How

Okay, I didn't pull from Greek mythology for this one. Birds are typically viewed as sacred creatures in Animism and Spiritualism, both of which are forms of religions that were practiced by Native American tribes.