Think you're smart? Let's see you solve these tough riddles

If you want some mind-boosters to help kick start your week, you've come to the right place.

Asian Town has compiled a series of 18 tough riddles that will leave you scratching you head trying to answer.

Some of them can be solved if you don't overthink the questions, while others might require you to use a little more brain power.

Have a look at the riddles above and scroll through the gallery for its answers.