What can you deduce from the following BrainBat?

CRY
LMKI

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

What jumps when it walks and sits when it stands?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

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

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Joseph buys three kinds of chocolates for 100 rupees. The first one is priced at 5 rupees, second one at 3 rupees and third one at 0.5 rupees.

If he bought 100 chocolates in total, how many pieces do you think he bought each chocolate?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?