The ornamental design for a paintpail and lid, as shown and described.
FIG. 1 is a rear perspective view of a paint pail and lid shown without the lid for clarity of illustration;
FIG. 2 is a top plan view thereof;
FIG. 3 is a right side elevational view thereof, the left side being a mirror image;
FIG. 4 is a front view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a rear view thereof; and,
FIG. 7 rear perspective view thereof with the lid secured thereto.
In FIGS. 1-7, the features of the paint pail and lid shown in phantom lines illustrate topographical structures and accessory features that form no part of the claimed design.