Greetings, player! You came to the right place, where all the answers for the Brain Test 3 game are published. Looking for help? Need someone to help or just stuck on some level? Earlier or later you will need help to pass this challenging game and our website is here to equip you with Brain Test 3 Level 21 answers and other useful information like tips, solutions and cheats. This game was created by a Unico Studio team that created a lot of great games for Android and iOS.
Find a way to open the door. Put three stones to the sockets on the door. The blue stone is behind a box. The red stone is inside the cabinet.