10x10x6 what? Inches? Feet? Meters? What size are the bricks? How thick are the mortar joints?
88 standard sized bricks.
If the bricks are in feet then 51/2 bricks would be needed.
between 1100 and 1200 bricks
The answer will depend on the size of the bricks!
you would need 12...
450 bricks
46 bricks; add a few more for waste and cutting
488 bricks.
2420
1500
6o bricks
You need close to 800 bricks, figuring for some breakage.