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

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

Bay of Bengal is in which state?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

A man dies of old age on his 25 birthday. How is this possible?

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

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

What has no start, end, or centre?