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

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

What's the next in the series?

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

What word does this rebus represent?

meta meta
meta meta

Can you count the number of lines in the below picture?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?