I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

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

There was a strange boy who was born before his father. How can this be possible?

You see me once in June, twice in November, and not at all in May. What am I?

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?

What do you call a fish without an eye?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

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

Complete the table series riddle by finding the number that can replace "??".