81 x 9 = 801. What must you do to make the this equation true?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

Which fur should we be getting from the Lion?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

Solve the rebus riddle in the picture below.

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)