Question

as plain as day
like fingernails on a chalkboard
as hard as nails
like a charm
as mad as a hatter
like two peas in a pod
completely crazy
inseparable
very well
tough
very clear
awful sounding

Explanation:

To solve this idiom - meaning matching problem, we analyze each idiom:

1. "As plain as day" means something is very clear and easy to understand, so it matches "Very clear".
2. "Like fingernails on a chalkboard" describes a sound that is unpleasant or awful, so it matches "Awful sounding".
3. "As hard as nails" is used to describe someone or something that is tough, so it matches "Tough".
4. "Like a charm" means that something works very well, so it matches "Very well".
5. "As mad as a hatter" is an idiom for being completely crazy, so it matches "Completely crazy".
6. "Like two peas in a pod" is used to describe two people or things that are inseparable, so it matches "Inseparable".

Answer:

• "As plain as day" - "Very clear"
• "Like fingernails on a chalkboard" - "Awful sounding"
• "As hard as nails" - "Tough"
• "Like a charm" - "Very well"
• "As mad as a hatter" - "Completely crazy"
• "Like two peas in a pod" - "Inseparable"