Riddler is a collection of 50 fun brain teasers to help you build your brain power. Solving brain teasers is great exercise for your brain - just a few minutes a day can make a big difference. Spending time with Riddler will also help you build better problem solving skills that can come in handy every day. Who knew that something this beneficial could be so fun!!!

We plan to release regular free updates to add additional brain teasers in the future. We are very interested in hearing from you if you have any great riddles to share; or, if there is a type of brain teaser that you would like to see more of.