John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

What is common among 11, 69, and 88?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

How can you make number one disappear by adding something to it?

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

Can you circle exactly four of these numbers such that the total is twelve?

1 6 1
6 1 6
1 6 1
6 1 6