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?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

Count the number of squares in the picture below.

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

John is pretty weird. He likes toffees but hates chocolates. He loves books but never reads. He likes to build his troops in an online game but does not proceed with the war. He likes to go swimming but is afraid of water.

Seeking this behaviour, can you tell whether he likes balloons and parties?

Move three sticks of the spiral below to form a square.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Why is the longest human nose just 11 inches?