I'll tell you a funny story.

我会给你讲个好笑的故事。

Children get some very funny ideas sometimes!

孩子们有时候有一些非常奇怪的想法。

There's something funny about him.

他有点儿怪。

My head had begun to ache and my stomach felt funny.

我的头开始疼起来，胃也感到不舒服。