Has there ever been a study on gamblers in association with mental disorders, e.g., Alzheimer's and dementia? A lot of the old guys I've played with in Vegas seem to be pretty sharp.

We will be visiting Vegas the end of the year and my son's girlfriend has celiacs disease. Is there a listing available of certified gluten free restaurants?

In the recent Q&A about why there's no gambling in Boulder City, you said that there's another Nevada town -- Panaca?? -- with a gambling ban, but for totally different reasons. So, where is Panaca and why is there no gambling there?

Today we conclude our brief history of the cost and design of Hoover Dam.

Enjoyed the QOD concerning Boulder City not allowing gambling. Question: Concerning the dam itself -- the total cost was projected to be $125,000,000 with a monthly payroll of $500,000. How much would those amounts be in today's dollars if the dam were to be built in 2016?

You recently answered a question about the ICE nightclub at Harmon & Koval (in the 6/27 edition of Question of the Day) and it made we wonder about another nightclub with 'Ice' in the name that's been empty forever. I believe it was called The Ice House, downtown on Main St. It's been closed for at least 5 years but still has the 'Ice House' name on the side of the building. Any plans for that place? We always stay downtown and have seen it vacant for so long, I was just wondering.Thanks!

Why did Las Vegas become the preferred location to gamble for Hoover Dam workers, when Boulder was so much closer to the construction site?

When preparing for our last Vegas trip I removed all the fifties in our bankroll and replaced them with hundreds or twenties. My husband questioned why. I heard $50s are considered bad luck in a casino and they will never pay you off with a $50. He didn't believe me. If true, how did this superstition start?

With the announced closing of Jersey Boys in September, how many Broadway shows are still running on the Strip? And are any more in the works?

Regarding your recent answer about valet charges, one clarification nobody ever seems to mention: Is the recommended tip amount paid twice, once when you leave your car and then again when you get your car back and leave, or do you only tip when you get your car delivered back to you?