What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Decode below rebus
D
N
A
T
S , D

What jumps when it walks and sits when it stands?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

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?

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?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

On a special event at the prison, 5 prisoners John, Jacob, Krist, Tang, and Dang given a chance to go to a sauna and can bring one thing with them.

Following are the things that the prisoners bring with them.
John: A soda
Jacob: Thermos
Krist: Book named "How to kill"
Tang: A Walkman
Dang: Harmonica

Since it is a Sauna, no one can see each other. After a while When the steam is switched, Tang was found dead and there was blood all around.
J Bond was called and he instantly come to know who can be the murderer. How?