Spot 5 differences in two Christmas tree below:

Can you find out the remainder when 3^300 is divided by 5?

My location can be determined by the below rebus.
So where am i ?

A thief is convicted in Mexico. He gets the death penalty. The judge allows him to say the last sentence to determine how the penalty will be carried out. If the thief lies, he will be hanged, if he speaks the truth he will be beheaded. The thief tells the last sentence and to everybody's surprise some minutes later he is set free because the judge cannot determine his penalty. What did the thief say?

When it is alive we sing, when it is dead we clap our hands. What is it?

What is red and smells like blue paint?

What has many teeth, but cannot bite?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

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

What is it?