Echos of Giggles

In the land of chatter, numbers sing:

Mouse's Delight = Cheese² - (Rest/Playtime)

Unicorns said:

Rainbow = Smile × (Hope + Sparkle)

Then the trees whispered:

Leaves' Dance = (Breezy Joy)³

And the owl hooted:

Wisdom² = Nighttime Twinkle × Serenity

Follow the whispers...