I recently finished a book that drew me in from the first paragraph.
Here it is:
"When you're five, you know your age down to the month. Even in your twenties, you know how old you are. I'm twenty-seven you say. But then in your thirties something strange seems to happen. It's a mere hiccup at first, an instant of hesitation. How old are you? Oh, I'm-you start confidently, but then you stop. You were going to say thirty-three, but you're not. You're thirty-five. And then you're bothered, because you wonder if this is the beginning of the end. It is, of course, but it's decades before you'll admit it. "
-Water For Elephants-
You can see why it drew me in immediately, can't you? That situation has happened to me more times than I can remember...no pun intended!