What runs around the whole yard without moving?

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

How many letters are in the alphabet?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

There is something which is always coming but never arrives?

Why 1729 is a magic number? Answer Logically.

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?