Which country gets ill every time?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

Find the hidden tiger in the given optical illusion ?

I have branches, but no fruit, trunk or leaves. What am I?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

Can you place six X (crosses) in below board without making three in a row in any way ?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Can you find out the missing number in the grid?

What makes this number unique: 8,549,176,320?