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?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

15 caves are arranged in a circle at the temple of doom. One of these caves has the treasure of gems and wealth. Each day the treasure keepers can move the treasure to an adjacent cave or can keep it in the same cave. Every day two treasure seekers visit the place and have enough time to enter any two caves of their choice.

How do the treasure seekers ensure that they find the treasure in the minimum number of possible days?

Identify the hidden meaning behind this picture?

What Adam and Eve do not have but the rest of the people have?

Count the number of triangles in the picture below:

In the image given, you can find several triangles. Can you count them all?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Find the 8 in the below-given Image.

Bay of Bengal is in which state?