What has many keys but can’t open a single lock?

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

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?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

Which tank will fill first?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?