Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

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

Spot 5 differences in two Christmas tree below:

what does the below math rebus puzzle mean?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Find the next number in the series.
1 10 24 43 67 ?

Who is that with a neck and no head, two arms and no hands? What is it?