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?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

With the help clues provided in the image, can you find the 5 digit key?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What Adam and Eve do not have but the rest of the people have?

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

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

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

Can you write down eight eights so that they add up to one thousand?