Cracks in foundation
Sometimes it is just a foundation crack that needs to be waterproofed, but other times it could mean something more serious
Multiple cracks
If there are multiple cracks in the foundation and if there is corresponding cracks in the floor or brick facade, it could mean settlement
Cracks in Brick.
Most certain sign of foundation settlement
Cracks beside chimney.
A crack in the corner of a chimney could mean the chimney has rotated and is separating from house.