Can you name some countries which do not have the alphabet 'A' in them?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

who is silent in the parliament?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

How many triangles can you count in the figure given?

Find the next number in the sequence

5 12 24 36 ?