You can see it everyday, But cannot touch it at will. What is it?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

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?

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

I taste better than I can smell. Who am I?

Which five letter word can be added at the end of below word to form a
valid word?

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What is so fragile that saying its name breaks it?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

Can you name some countries which do not have the alphabet 'A' in them?