If eleven plus two equals one, what does nine plus five equal?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

A man dies of old age on his 25 birthday. How is this possible?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

Replace the question mark with the correct number below.

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

How many times in a given day, minutes and hour clock comes in a straight line ?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145