BIRTHDAY RIDDLE

21 years old Did you answer this riddle correctly?
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12 Did you answer this riddle correctly?
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Their birthday is on the 1st of January.

Here it is given that 3 days ago, it was The Narrator's birthday so he(The Narrator) was 18 years old 3 days ago and now at present the age of The Narrator is 19 years and next year he will be 20 years old, so I told you that his birthday is on 1st of January and he is 19 years old at present so according to the question asked he was 18 years old 3 days before 1st January i.e. on 29th of December and he will be 20 years old on the next year i.e. on 1st of January. Did you answer this riddle correctly?
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Today is 1st January

Yesterday is 31st December, your birthday, which you will be 22

The day before yesterday is 30th December, you're still 21

Let's say it's year 2020, so today is 1st January 2020, you are 22

December 31, 2020 you are 23

And then the next year, December 31, 2021 you will be 24 Did you answer this riddle correctly?
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On carefully inspecting this question, one can understand that there are two days which are important and these are:

A. My Birthday.

B. The day when I am making this statement.

If you think for a while, you will understand that such statements can be made only around the year's end. So, if my birthday is on 31 December, then I will be making this statement on 1 January.

I will further explain using the following example:

1. Consider that today is 01 January 2017.

2. Then, the day before yesterday was 30 December 2016 and according to the question I was 25 then.

3. Yesterday was 31 December 2016, which happens to be my birthday too (Woohoo!), and my age increases by one to become 26.

4. I will turn 27 on my birthday this year (31 December 2017).

5. I will turn 28 on my birthday next year (31 December 2018).

Now, if you read the question again, it will make more sense:

The day before yesterday(30 December 2016), I was 25 years old and next year(31 December 2018) I will be 28. Did you answer this riddle correctly?
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He is Australian, where the three hottest summer months are December, January and February. Did you answer this riddle correctly?
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A teenager! Did you answer this riddle correctly?
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Shots are on me! Did you answer this riddle correctly?
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Billie lives in the southern hemisphere. Did you answer this riddle correctly?
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Only twenty-three people need be in the room, a surprisingly small number. The probability that there will not be two matching birthdays is then, ignoring leap years, 365x364x363x...x343/365 over 23 which is approximately 0.493. this is less than half, and therefore the probability that a pair occurs is greater than 50-50. With as few as fourteen people in the room the chances are better than 50-50 that a pair will have birthdays on the same day or on consecutive days. Did you answer this riddle correctly?
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I am a cake Did you answer this riddle correctly?
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Mark's mom said, "Your father, grandfather, and great grandfather were all born in January. You were born in July." Did you answer this riddle correctly?
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We conversed on January 1 and her birthday is on December 31. Did you answer this riddle correctly?
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One was born on December 31st 11:59pm and the other was born on January 1st 12:00am. Did you answer this riddle correctly?
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May the Fourth (be with you!) Did you answer this riddle correctly?
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