Can you count the number of triangles in the given figure?

Can you replace the question mark with the correct number?

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?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Can you find a five letter word that is left with only two letters if one is removed?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

What is the word or phrase below?
R | E | A | D