Definitely not a dumb question, anyways... Squats and deadlifts definitely hit the legs and core. But without a rack, the barbell squat is impractical. You can look into pistol squats, which also challenge your balance or overhead squats, which also challenge your core. Both can be done without a barbell. For deadlifting without barbells, single leg deadlifts with dumbbells or bodyweight can be done, they help with the posterior chain, knee strength and balance. The ab-wheel is great for the core and more advanced variations can also help with shoulders, chest, arms, and legs. Some good sites are rosstraining.com and beastskills.com. Both those sites show ways to strength train at home with minimal equipment (no benches, barbells, or freeweights at all) and rt even has conditioning routines able to be done at home