Cristina was born in 1888. She just had her 30th birthday today how did that happen?

A king sentenced a man to the death sentence for some crime he had committed. Known for his kindness, the king told the culprit that he had a choice to die in a way he decides.

The culprit was clever and said something that saved him from death. What method do you think he must have chosen for his death?

With the help clues provided in the image, can you find the 5 digit key?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

Which is Odd One Out and why?

4377

3954

9862

8454

9831

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?

Akbar summoned Birbal out of anger.
He told him that he will have to face death.
He asked him to make a statement and if the statement is true he will be buried alive and if the statement is false, he will be thrown at lions.
After hearing Birbal’s statement, Akbar could do nothing but smile.
He gave him 5 gold bars and let him go.

What did Birbal say?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

How can you leave a room with two legs and return with six legs?