That’s a million dollars question  

Everyone wants to know.

いい質問ですね～～

例: What’s today’s topic? That’s a million dollar question.  = 今日のトピックは何ですか？いい質問ですね！（みんなも知りたいでしょ!? のようなニュアンス）

Stand out

Something that you can see clearly.

目立つ

例：You will stand out from the crowd if you wear a red jacket and I can find you easily. = もしあなたが赤いジャケットを着てたら人混みの中でも目立って見つけやすい

※Outstanding とは意味が異なるので注意！　Outstanding = someone who has high skills and is very talented. 

If my memory serves me correctly (Formal/Professional)

I remember … (anytime usage)

私の記憶が正しければ… (かしこまった言い方)

例：If my memory serves me correctly, the document was prepared last year by another colleague. 私の記憶が正しければ、その書類は他の同僚が昨年準備していたと思います。

I remember you were at the party wearing a beautiful necklace last time we met. = この前会ったとき、素敵なネックレスを着けてパーティーに参加していたよね！

Go back and forth

moving to and from a place many times

行ったり来たり、

例：Breaking the ice should go back and forth. = アイスブレイクは（会話が）行ったり来たりするべきである

drained

feeling as though you have no mental or physical energy left

疲れ果てる　（draine:排出する ）

例：I feel drained. I just finished all my assignments. = 全部の課題がを終えてもう疲れ果てたよ

Spin off from 

Pepper someone with questions

someone who asks too many questions

しつこく質問しまくる

My neighbour is peppering me with questions, it feels like an interviewer. =  私のご近所さんはインタビューのように質問しまくってくる。

nosy

wanting to know about things that involve other people but not you.

詮索好きな・おせっかいな

My mom is nosy, she always asks me many questions whenever I go out. 

Keep it light

To avoid being overly serious; to be fun and carefree.

（話が）重くない・カジュアルに

例：Keep it light!! Don’t ask too many serious and nosy questions.