Echo Jokes

Three men are in a hot-air balloon. Soon, they find themselves lost in a canyon somewhere.
One of the three men says, "I have an idea. We can call for help in this canyon and the echo will carry our voices far enough for someone to hear us."

So he leans over the basket and yells out, "Helllloooooo! Where are we?" (They hear the echo several times).
15 minutes later, the men in the balloon hear an echoing voice: "Helllloooooo! You're lost!!"
One of the men says, "That must be a Microsoft service tech!"
Puzzled, one of the other men asks, "Why do you say that?"
The man replies: "For three reasons:
(1) he took a long time to answer,
(2) he was absolutely correct, and
(3) his answer was absolutely useless."

Three men are in a hot air balloon. Soon, they find themselves lost in a canyon
somewhere.
One of the three men says, "I have got an idea. We can call for help in this
canyon and the echo will carry our voices far." He leans over the basket and
yells out, "Helllloooooo! Where are we?"
They hear the echo several times. 15 minutes later, they hear this echoing
voice, "Helllloooooo! You are lost!"
One of the men says, "That must have been a mathematician."
Puzzled, one of the other men asks, "Why do you say that?"
The man replies, "For three reasons: 1) he took a long time to answer, 2) he was
absolutely correct, and 3) his answer was absolutely useless."

Anand went to a world-famous "Echo Point" and hollered "Hallobo!" To his surprise, there was no reply. He again shouted "Hellooo!" this time with all his might. Back came a reply "Thank you for shouting. Your shout is important to us. At present all our echoes are busy replying to other shouters. Please hold on. Your shout will be replied to very shortly."

When I shake your head, all I hear is echo echo echo...

The Rocky Mountains are very big and far apart. It takes a long time for an echo to bounce back off one of these mountains. One night, a camper in the Rockies went to sleep early. But before climbing into his sleeping bag he yelled, Time to get up. And eight hours later the echo came back and woke him up!