What needs to be done with the stamps that are stuck together?

When stamps are stuck together, the appropriate action is to carefully pull them apart. This method preserves their condition and value, especially if they are collectible. Stamps are often delicate, and using gentle force to separate them minimizes the risk of damage.

The other actions suggested, such as burning, throwing away, or cutting apart, would typically result in damaging the stamps. Burning would destroy them entirely, while throwing them away would indicate the loss of potentially valuable items. Cutting stamps can also ruin their integrity and affect their collectible status. Therefore, pulling them apart is the most logical and careful approach to handle stamps that are adhered to one another.