Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

In a town, there are over 100 flats.
Flat-1 is named first flat.
Flat-2 is named second flat.
Flat-3 is named third flat.

A visitors 'Victor' decides to walk through all the flats, he finds all the flats except flat-62.
Victor later founds that the local of the town have given it another name.

What is the name of the Flat?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

It is always ahead of me yet I can never see it. What is it?

Who always enjoys poor health?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

What do you see in the given picture?

When does a USA Potato change its nationality?

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?