Which of the below owl is odd one out?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

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?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

Rearrange the letters in "new door" to make one word.

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Why did Buffon take the goal with him after every Juventus match?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

Bay of Bengal is in which state?