What is always in front of you but can’t be seen?

I am quite hot but become too cold if you remove the first two letters. What am I?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

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 is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E