Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

I have branches, but no fruit, trunk or leaves. What am I?

Which is heavier: a ton of bricks or a ton of feathers?

Count the number of squares in the picture below.

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?

What is the riddle which can be asked all day with a different correct answer each time.

John is the son of Jacob.
So,
Jacob is the_____of John's father?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

Two Twins Jack and Jill were standing back to back and suddenly they started running in opposite direction for 4 kilometres and then turn to left and run for another 3 kilometres.

what is the distance between the Baggio twins when they stop ?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?