A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Replace the question mark with the correct number below.

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

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

What is the word or phrase below?
R | E | A | D

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

Count the Triangle in the figure given below:

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?