I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

What does below chemistry rebus means?

John bought a new car. He has a habit of eating ice cream from a particular ice cream shop while returning home from office. Whenever, he eats strawberry ice cream, he faces no problem. But whenever, he eats chocolate ice cream, the car starts giving problem. At first, he thinks, it is just a co-incidence but when this awkward incident happens for 3-4 times, he reports this problem to the company.

The mechanic of the company checks but finds no problem at all. The next day, when he stops by to eat chocolate ice cream, the car again starts giving problem.

Can you find the possible reason?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

Can you decipher the below rebus?

PBLUESAISNUERSES

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

What number do you get when you multiply all of the numbers on a telephone's number pad?

I am white when I am dirty, and black when I am clean. What am I?

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