What's a single-digit number with no value?

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

What can go up a chimney down, but can’t go down a chimney up?

What does below pictogram mean?

John was drowned by he was not wet. How?

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

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

If six children and two dogs were under an umbrella, how come none of them got wet?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?