They are normal bumps from when you are born. When a baby's head comes out of the vagina, the bones are very soft. This is on all human beings who were actually born from being shoved from a vagina, rather then a c-section.
It is most likely nothing to worry about. Indentations in the skull are very common and are caused by the abnormal growth of the soft tissue and bones in the human skull.
A fontanel is a soft spot on a baby's head where the skull bones have not yet fused together. There are typically several fontanels on a newborn's head to allow for the baby's brain growth and development. Over time, these fontanels will close as the skull bones fully develop.
Mist it with water and blow dry it. You may need to repeat for deep indentations.
The triangular indentations used for the script of Sumerians is called cuneiform.
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Dimples
Phenology is the study of animal and plant life cycle events. You might actually mean phrenology, which is the study of the patterns of bumps and indentations on a human skull in the belief that this is an indication of personality and character. If you wish more information on either topic there are articles on wikipedia.
Dimples.
Meteors, or asteroids.
A fingerprint reader
Coffer
It depends on the letter.