TimeSpaceLightForce

There are satchels where 2 has  paper, 2 has scissors and 2 has rock inside.
2 contestants picks up one satchel each, open them to determine who wins.
Then picks up another to determine who wins. 2 wins is needed to determine  
the winner of the contest. What is the chance of winning 2 in a row ?

Using a  thin glass sphere with inside radius of 1, the magician made
an ice  with  a shape of regular tetrahedron appear inside the closed
glass (no opening or hole) where all its vertices touches the sphere.
And then thaw it with a blow torch.When the ice is all melted he makes
another similar ice tetrahedron appear inside. How many times can he
perform the trick on that same spherical glass without breaking it?

!

*

How will you make a slice on a cube ice so that it will melt quickest?

All in a triangle formation. The role of random,false or truth are

assigned to 3 players. These players must guess his and the
roles of others to win. No one know at the start his role or the
roles of player on his left and his right.

Holding a grounded device they  should press a button for a guess:
(buttons can be repeatedly press but 3 right ones will do)

Players       False      Truth     Random
Left                 O          O          O
Center             O          O          O
Right               O          O          O

1) The random player will get a jolt of volts (electric shock)
 if his last 2 succeeding  guesses are both true or  both false.
2)The false player will get a jolt of volts if his guess is true.
3)The truth player will get a jolt of volts if his guess is false.

What buttons they should press to win  with least try and pain ?

 sc.JPG   3.93K   29 downloads

If the dark object  can pass thru the light object,

are they circle and square or sphere and cube?