What has a ring but no finger?

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

How is a fly different from a mosquito?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

What can you deduce from the following BrainBat?

CRY
LMKI

I make two people out of one. What am I?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

How many times do a clock's hands overlap in a day ?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.