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

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

People are waiting in line to board a 100-seat aeroplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise, they will choose an open seat at random to sit in. The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Our product and our sum always give the same answer. Who are we?

what does the below rebus mean?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?