Which Burger Is Different in below image?

What does this below rebus puzzle mean?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

I look at you, you look at me I raise my right, you raise your left. What am I?

Can you start the fire using two pieces of wood?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

A couple went on a climbing trip. But only the husband returned from the vacation and said that his wife slipped off while climbing and died. On investigating, the local sheriff arrested him saying, 'Your travel agent called. You murdered your wife.'

The man did not inform anyone about the trip. Then how was the agent so sure that it was a murder?

What does this say?

XLR8

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?