Pawns are collectible items that you can use as “characters” on the different game boards. Once you equip a pawn, it will replace the one you had previously selected or the default one in case you are equipping one for the first time.
Every time you land on a box containing a question mark (?), you will be able to answer a question on a specific topic. Each topic will suppose a different Themed Mission; the objective is to complete the mission's progress bar in order to get the corresponding pawn.
In the “Inventory” section you will find your Pawns collection and will be able to equip the one you want, as long as you have already completed the corresponding Themed Mission to obtain it.
In the “Missions” section, under “Themed”, you will find your missions' progress and what you need to complete them.