Here are a couple of ways to interpret it:
* Half the number of bones: If you're asking where half the total number of bones in the body are located, the answer is the limbs. The arms and legs contain about half of the 206 bones in the human body.
* Half of each bone: If you're asking where half of each individual bone is located, it's a bit more complicated. Bones aren't symmetrical in half. You might be thinking of the axial skeleton, which is the central part of the skeleton, including the skull, spine, ribs, and sternum. These bones are more centrally located in the body.
Let me know if you had something else in mind, and I'll try to answer more accurately!