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

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

Can you solve the below geography rebus by decoding the below rebus ?

What jumps when it walks and sits when it stands?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

Find the missing number in the sequence below:

People make me, save me, change me, raise me. What am I?

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

Eight of us go fourth, not back, to protect our king from an attack. What are we?

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?