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

I have Rs.50 and I spend it in the way as below.

Spot 5 differences in two Christmas tree below:

Two old friends, Jack and Bill, meet after a long time.

Three kids
Jack: Hey, how are you, man?
Bill: Not bad, got married and I have three kids now.
Jack: That's awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool..But I still don't know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh, now I get it.

How old are Bill's kids?

Who always enjoys poor health?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain