What's the only room from which no one can enter or leave

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

Which is faster, Heat or Cold ? Explain.

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

What is the last thing you take off before bed?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?