Before Mount Everest was discovered, what was the highest mountain in the world?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

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?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

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