81 x 9 = 801. What must you do to make the this equation true?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

What does an Island and the letter T have in common?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

Through your logical capabilities, can you make 7 an even?

What has hands, but can’t clap?

I am quite hot but become too cold if you remove the first two letters. What am I?

If two's company, and three's a crowd, then whats four and five ?

Find the smallest sentence with all the English alphabet.

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?