Solve The below Equation:

ALFA + BETA + GAMA = DELTA

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

what does this picture(rebus) riddle means ?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

What's the next in the series?

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

Mr. Buttons was all set to go to the village of Buttonland to meet his friend. So, he packed his bags and left for the village at 5 in the morning. Upon travelling on a road for miles, he came across a point where the road diverged into two. He was confused on which road to take. He gazed around and he saw two owls sitting on a branch. He thought he could ask for directions for the village from the two owls. So he went to the tree. There he saw a sign which read, "One owl always lies, and one is always truthful. They both fly away if you ask them more than 1 question."
Mr. Buttons was caught in the dilemma of what to ask? And from which owl to ask, since he only had one question. What should Mr. Buttons ask?