An ancient couple had friends round for a cup of tea. The ladies were in the kitchen and the two chaps were having a natter.
"We went to a really good restaurant last night," said the old boy.
"Really?" said his friend. "We've been looking for good restaurants to go to round here. What was the name?"
"Oh dear, I can't remember," said the old boy. "Let me think: what's that flower called, you know, the one that comes in different colours, it's got a nice scent, and I think it's got thorns up its stem...?"
"Rose?" suggested his friend.
"Ah, that's it!"
He called into the kitchen, "Rose, what was the name of the restaurant we went to last night?"

You will have to guess who that is from. Adds to the fun :-D