Can you decipher the two rows to find the hidden word?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

A man has to get a fox, a chicken, and a sack of corn across a river.

He has a rowboat, and it can only carry him and one other thing.
If the fox and the chicken are left together, the fox will eat the chicken.
If the chicken and the corn are left together, the chicken will eat the corn.

How does the man do it?

What word is pronounced the same if you take away four of its five letters?

I have Rs.50 and I spend it in the way as below.

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

Why do you find that most of the buildings are deprived of the 13th floor?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

I add 5 to 9 and get 2. The answer is correct, so what am I?