When dogs get lonely or bored, they start chewing on things to entertain themselves. This can turn out to be a disaster for pet owners as they start gnawing on furniture and other household items. So what better way than to get them interactive puzzle toys that will keep them entertained endlessly and help sharpen their cognitive skills? These mentally stimulating toys help keep your puppy smarter and always alert. With a variety of options in the market, we have listed the best ones you should consider.