When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Count the number of lines in the image below ?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

What word does this rebus represent?

meta meta
meta meta

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?

I make two people out of one. What am I?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your