Why Aeroplane windows are round?

Can you write down eight eights so that they add up to one thousand?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

What shoe company does this rebus represent?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

A mother bought three dress for her triplets daughters(one for each) and put the dresses in the dark. One by one the girls come and pick a dress.
What is the probability that no girl will choose her own dress?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?