Can you find the odd number in the following?

2716, 4135, 5321 and 7145

Different lights make me strange by changing me into different sizes. What am I?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Why 1729 is a magic number? Answer Logically.

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

What does below Rebus say?

XLR8

What number when divided in half becomes zero?

I have eight fingers and two thumbs but I do not live. What Am I?