If a wheel has 54 spokes, how many spaces are there between the spokes?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

You can hear me, but you can't touch or see me.

What am I?

Replace the question mark with the correct number in below Picture:

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211