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

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

I taste better than I can smell. Who am I?

How many words can a pen with half refill write?

What jumps when it walks and sits when it stands?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.