10x10x6 what? Inches? Feet? Meters? What size are the bricks? How thick are the mortar joints?
If the bricks are in feet then 51/2 bricks would be needed.
88 standard sized bricks.
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.