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

Can you write down eight eights so that they add up to one thousand?

Be active and find the killer in the picture Riddle below.

A farmer and his neighbour once went to Emperor Akbar"s court with a complaint. "Your Majesty, I bought a well from him," said the farmer pointing to his neighbour, "and now he wants me to pay for the water."
"That"s right, your Majesty," said the neighbour. "I sold him the well but not the water!"?
The Emperor asked Birbal to settle the dispute. How did Birbal solve the dispute?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

I always drive my customer away.

Who am I?

What does below Rebus mean ?

esgg sgeg gegs gsge

If a wheel has 54 spokes, how many spaces are there between the spokes?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M