How can you write nineteen in a manner that if we take out one, it becomes twenty?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

Which word does the below Plexor means ?

In which direction should the missing arrow point?

What is red and smells like blue paint?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99