What are these bits used for?

[Tedley]

I bought some various Drill bits packaged in small lots at a flea market this morning and came across a few I'm unfamiliar with.
The two longer bits on the right have a small slot in the tip.
The three to the left have <1 twist at the point and waffle iron like teeth in slightly different patterns, from square grid to twisting up the shafts?

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[Tedley]

Waffle iron like patterns of teeth varying from square grid to twisting up the shafts?

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[rslaback]

I can't see the slot on the right ones but the left ones are a gimmick tool designed to drill into a material and then cut by pushing over on the drill.

 

[Bobcat753]

The ones on the right look like masonry bits. Probably missing the carbide insert.

 

[Tedley]

Makes sense to me. Thanks.

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[rlitman]

The ones on the left are a combination drill/saw.