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

What is the below Rebus indicate?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

What has 13 hearts but no other organs?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

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

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

How many times in a given day, minutes and hour clock comes in a straight line ?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?