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 walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What is full of holes but still holds water?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Two old friends, Jack and Bill, meet after a long time.

Three kids
Jack: Hey, how are you, man?
Bill: Not bad, got married and I have three kids now.
Jack: That's awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool..But I still don't know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh, now I get it.

How old are Bill's kids?

What word begins and ends with an E, but has only one letter?

Can you find the six hidden animals in the picture below?

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?