I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

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

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

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.)

What part of Turkey has the most feathers?

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

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

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