Download of Math Riddles 2.0.6 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program lies within Education Tools, more precisely Science. The actual developer of this free software for Mac is Zhengzhou Sibo Intelligent Technology Co., Ltd. We recommend checking the downloaded files with any free antivirus.
From the developer:
Math Riddles lets you test your intelligence with 100 ancient math problems. The application levels up your IQ with a mix of logical puzzles. You can challenge yourself with different levels of math games and stretch the limits of your mind. It reveals your mathematical talent through brain games that are hidden in geometrical shapes. You will train both parts of your brain by exploring the relations between the numbers in the geometrical shapes.
You may want to check out more Mac applications, such as World Riddles: Animals, Arizona Rose and the Pharaohs' Riddles or Time Riddles - The Mansion, which might be related to Math Riddles.