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

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

Why is the longest human nose just 11 inches?

It is a nine-letter word.
The exact opposite of the phrase "friendly and outgoing"
It contains the word "over".
It starts will a vowel.

What is it?

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 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?

When 99 is considered higher than 100?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Why did Navjot Singh Sidhu put the new January calendar in the freezer