How many bones are there in the human skull?

Googling produces varying answers, but the number 22 comes up the most.

The human skull is generally considered to consist of twenty-two bones—eight cranial bones and fourteen facial skeleton bones. In the neurocranium these are the occipital bone, two temporal bones, two parietal bones, the sphenoid, ethmoid and frontal bones.

https://en.wikipedia.org/wiki/Skull

The entire group of bones that make up the head is called the skull and it too can be divided into two primary groups: the Cranium and the Facial area.

There are eight bones that make up the cranium, and six bones make up the facial area. In addition to the previous bones, there are six tiny bones (three pairs) called ossicles that are located in the ears. There is one final bone of the human skull. It is a single U-shaped bone to which the tongue attaches to and it is called the hyoid bone. That makes a total of 21.
See:

In humans, the adult skull is normally made up of 28 bones. Except for the mandible, all of the bones of the skull are joined together by sutures, rigid articulations permitting very little movement.

At birth, the human skull is made up of 45 separate bony elements. As growth occurs, many of these bony elements gradually fuse together into solid bone (for example, the frontal bones).

* frontal bone
* parietal bone (2)
* temporal bone (2)
* occipital bone
* sphenoid bone
* ethmoid bone

Facial bones

* mandible
* maxilla (2)
* palatine bone (2)
* zygomatic bone (2)
* nasal bone (2)
* lacrimal bone (2)
* vomer bone
* inferior nasal conchae (2)

Ear ossicles

* malleus (2)
* incus (2)
* stapes (2)

https://en.wikipedia.org/wiki/Skull#Development

22 and 28 are the most popular answers to this question.

Wikipedia explains why there is a discrepancy. In short, it depends how you count them:

https://en.wikipedia.org/wiki/Human_skull

Bones

Various sources provide different numbers for the count of constituent bones of the human neuro- and viscerocranium. The reasons for such counting discrepancies are numerous. Different textbooks classify the bones of the human skull differently, e.g. they may (also) include (parts of) bones that are ordinarily considered neurocranial bones in their list of facial bones.

Some textbooks count paired bones (where there is one bone on each side) only once instead of twice. Some sources describe the maxilla's left and right parts as two bones. Likewise, the palatine bone is also sometimes described as two bones. The hyoid bone is usually not considered part of the skull, as it does not articulate with any other bones, but some sources include it. Some sources include the ossicles, three of which on each side are encased within the temporal bones, though these are also usually not considered part of the skull. Extra sutural bones may also variably be present, but they are not counted.

For all of these reasons, it may not be easy or useful to reach agreement on an authoritative bone count for the neuro- and viscerocranium and the human skull. However, such discrepancies between various sources are only differences in how to classify and/or describe the anatomy of the human skull, and regardless of what classification/description is used, the basic anatomy remains the same.

With that in mind, as one possible classification, the human skull could for example be said to consist of twenty two bones: Eight bones of the neurocranium (occipital bone, 2 temporal bones, 2 parietal bones, sphenoid bone, ethmoid bone, frontal bone), and fourteen bones of the viscerocranium (vomer, 2 conchae, 2 nasal bones, 2 maxilla, mandible, 2 palatine bones, 2 zygomatic bones, 2 lacrimal bones)