What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

Find the last number in the series below:

voN luJ yaM raM ---

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?

What building has the most stories?

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

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

I have feet, but no legs. Which animal Am I?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

What begins with T, ends with T, and has T in it?