Q.Bottle Palm
Just below the leaf fronds there are spike-like growths. What are they and should they be cut off, planted, or what?

Certified GKH Gardening Expert
These are flowers. It tells me that this is the bottle palm's close relative (which these are commonly mistaken for) It is called the Spindle Palm. These can be removed once they die and turn brown, otherwise, there is no action required.
This article will help: https://www.gardeningknowhow.com/houseplants/spindle-palm/growing-spindle-palm-trees.htm