What are the chances for success?

What are the chances?
偶然［奇遇］だなあ。

What are the chances for success?
成功の見込みはどうでしょうか？

what are the chances of
～の可能性はどのくらいか

What are the closing costs?
契約手数料はいくらですか？

What are the closing requirements?
契約手数料はいくらですか？

What are the connections between climate change and health?
気候変動と健康にはどんな関係がありますか？

"What are the contents?" "These are for my personal use."
「中身は何ですか？」「それは私の身の回り品です」