give me some English idiomatics that language learners always make funny mistakes

"Break a leg" - This idiom is used to wish someone good luck before a performance or event. However, language learners often take it literally and may think it means to physically break a leg.

"Let the cat out of the bag" - This idiom means to reveal a secret or to disclose something that was meant to be kept hidden. Language learners may interpret it literally, thinking that someone actually let a cat out of a bag.

"It's raining cats and dogs" - This idiom is used to describe heavy rain. Language learners may find it amusing and wonder why cats and dogs would fall from the sky during rain.

"Bite the bullet" - This idiom means to face a difficult or unpleasant situation with courage. Language learners might think it involves physically biting a bullet, which can be confusing and funny.

"Piece of cake" - This idiom means that something is very easy. However, language learners might interpret it literally, wondering why someone would compare a task to a piece of cake.

"The ball is in your court" - This idiom means that it is someone's turn to take action or make a decision. Language learners may misunderstand it and think it refers to an actual sports ball being in their possession.

"Under the weather" - This idiom is used to say that someone is feeling sick or unwell. Language learners may take it literally and imagine someone being physically under the weather.

"Cost an arm and a leg" - This idiom means that something is very expensive. Language learners might find it funny and wonder why someone would associate the cost of something with body parts.

"Put all your eggs in one basket" - This idiom means to risk everything on a single opportunity or plan. Language learners may interpret it literally and imagine someone actually putting all their eggs in a basket.

"Let sleeping dogs lie" - This idiom means to avoid stirring up trouble or to leave a situation as it is to prevent further problems. Language learners might find it amusing and wonder why someone would be concerned about sleeping dogs