Our product and our sum always give the same answer. Who are we?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

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?

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?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

Make a sentence consisting of three words that have the whole alphabet.

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

What is the below Rebus indicate?