Can you find the company name in the pictogram below?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

How can you make number one disappear by adding something to it?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

How could a baby fall out of a twenty-story building onto the ground and live?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?