Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

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.

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

If 1+9+8=1, what is 2+8+9?

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?