First 2 images are silverfish. If only a few, not a problem

Other 2 images may be a drugstore beetle. It's usually a pantry pest but can be found elsewhere in the house if it has food. If you found only one, unlikely to be a problem.

Thanks Jean,
First 2 images : only few found on the house walls.

Other 2 images : found many in banana fiber/rattan stools.
The wooden stools had many small round holes, so I guessed they are Powder Post Beetles.
I have disposed off the stools. But some are still found here and there.
Is the drugstore beetle known to infest the wood?

Thanks.

Drugstore beetles doesn't damage wood.