A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

What am I?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

Why is 6 afraid of 7?

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

Can you solve the photo plexer logic ?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?