self Maths Puzzle

Mrs. James was playing with her baby. She felt bored playing with her and she found some blocks. And she started playing with that, the top layer must be one less than the bottom layer. She altogether found 55 bricks.How many bricks does she need to place at the bottom layer.

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self Other Question

Mon, Tue, Wed are the lie days for A. Thu, Fri, Sat are the lie days for B. A says Yesterday is my lie day, B too says that Yesterday is my lie day. Find the day that fall with this particulars. given
carpenter + painter = 1100
painter + electrician = 3200
electrician + plumber = 5100
plumber + mason = 2200
mason + labour = 3000
labour + painter = 1100
find every person's cash?