<section> <h2> <h1><strong> </strong>Find the Odd One Out in These Mathematical Brain Teasers</h1> </h2> Trying to spot the odd one out from a given set of numbers can make for a very challenging brain teaser. All numbers or equations in the questions in this quiz follow a set pattern or rule, however there is one option that doesn’t. So, get started and find that odd number or equation. </section> <section> <h2> <h2 style="text-align: center;">Which is the odd one out?</h2> </h2> </section> <section> <h3> <h2></h2> <h2 style="text-align: center;">Which is the odd one out?</h2> </h3> </section> <section> <h3> <h2 style="text-align: center;">Which is the odd one out?</h2> </h3> </section> <section> <h3> <h2></h2> <h2 style="text-align: center;">Which is the odd one out?</h2> </h3> </section> <section> <h3> <h2></h2> <h2 style="text-align: center;">Which is the odd one out?</h2> </h3> </section> <section> <h2> <h2>Push yourself to win next time!</h2> </h2> </section> <section> <h3> <h2>Nice job! You're almost there</h2> <h2><strong> </strong></h2> </h3> </section> <section> <h3> <h2>Congratulations! You're a genius</h2> <h2><strong> </strong></h2> </h3> </section>