Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

I am an odd number. Take away a letter and I become even. What number am I?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

A man dies of old age on his 25 birthday. How is this possible?

Decode below rebus
D
N
A
T
S , D

What does this rebus puzzle means ?

What does below pictogram mean?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?