A father's child, a mother's child, yet no one's son.

Who am I?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

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?

What four weights can be used to balance from 1 to 30 pounds?

Can you count the number of triangles in the picture below?

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

What runs around the whole yard without moving?