03 Nov 2014 Por

SOLUTION TO PUZZLE 6:   C should lead the parade

PUZZLE 7: Socrates plans a trip *

Socrates wanted to take a trip to Philius, and decided that one of his young followers should accompany him. Three of them expressed keen interest, and Socrates questioned them to determine which one of the three should be selected.

The disciple selected makes three true or three false statements. Of the other two, one makes two true and one false statement, and one makes one true and two false statements. Their statements follow:

A. 1. C is the oldest.

    2. B would not carry the baggage.

    3. I am the one with three true statements.

B. 1. I would carry the baggage.

    2. C will be chosen.

    3. A's first statement is false.

C. 1. I am the oldest, so I should be selected.

    2. B will be selected.

    3. B's third statement is true.

Which follower did Socrates select to accompany him?


SOLUTION TO PUZZLE 7:  Socrates elects A



27 Oct 2014 Por

SOLUTION TO PUZZLE 5:  D is the thief

PUZZLE 6: Who should lead the victory parade? *

At the successful end of the war with Persia, it was decided that there should be a parade through the main streets of Athens. At the front of the procession should be the soldier who had led the charge during the last battle, but the identity of this soldier was unclear. Socrates was asked to decide who should lead the parade, and he questioned three candidates. One of them makes one false statement; one makes two false statements; one makes three false statements, as follows:

A. 1. I led the charge in the last battle.

    2. I am clearly the choice to lead the parade.

    3. C was in the reserve ranks during the battle.

B. 1. C did not lead the charge during the last battle.

    2. I am the logical choice to lead the parade.

    3. I could keep in time with the parade music very well.

C. 1. I should be selected.

    2. B would not be able to keep in time with the parade music.

    3. I was not in the reserve ranks during the last battle.

Which soldier should lead the parade?


20 Oct 2014 Por

SOLUTION TO PUZZLE 4:    B is the observer

PUZZLE 5  Theft from the statue of Athena *

A piece from the gold-and-ivory statue of Athena was stolen. There was evidence that the thief, acting alone, entered the temple in the dead of night and used a large hammer to dislodge a piece of the statue. Socrates agreed to cross-examine four suspects, all of whom were in Athens when the crime occurred. One of them is guilty. One suspect makes three true statements; one suspect makes three false statements. As to the truthfulness of the statements by the other two suspects, little is known. Their statements follow:

A. 1. I did not do it.

    2. I was in Philius when the crime occurred.

    3. B is guilty.

B. 1. I am innocent.

    2. C owns a large hammer.

    3. C was seen at the Acropolis late that night.

C. 1. I do not own a large hammer.

    2. A and B are both guilty.

    3. I went to bed early that night.

D. 1. Only one of my statements is false.

    2. C was out late that night.

    3. I am innocent.

Which one is the thief?


19 Oct 2014 Por

Aquí os dejo los enlaces para consultar la relación de las nuevas convocatorias para los exámenes de Cambridge KET, PET, FCE, CAE Y CPE. Como seguramente sabréis, tenéis la posibilidad de realizar el examen tradicional en papel y también podéis hacerlo por ordenador. Las convocatorias son diferentes según la modalidad de examen, por eso os pongo los dos enlaces correspondientes a ambas modalidades.

Os recordamos que somos centro preparador de estos exámenes y que nuestro porcentaje de aprobados es del 94%. Tenemos grupos que te preparan para el PET, FCE, B1, B2, etc. y ofrecemos clases de prueba sin compromiso. 

Así mismo, como centro preparador de Cambridge, podemos matricularos para estos exámenes desde la academia sin cargos adicionales con las ventajas que ello supone frente a la inscripción individual. 





13 Oct 2014 Por

SOLUTION TO PUZZLE 3:    D is guilty




As Socrates' reputation grew, there were those who were jealous of his fame, and who had been embarrassed by his method of cross-examinig to gain the truth. There was a movement to indict Socrates as a negative and disturbing influence. A citizen was chosen to secretly pose as a student of Socrates, to observe his teaching and gain evidence against him. Socrates was informed that one of four followers was, in reality, such an observer. Socrates questioned the four. Their statements follow. All statements are true except any mentioning the secret observer.

A. 1. C is definitely a student, here to learn.

    2. D is a stranger to me.

B. 1. A and D are not acquainted.

    2. C is not the observer.

C. 1. B's first statement is false.

    2. A's second statement is true.

D. 1. C's first statement is false.

    2. A's first statement is true.


Which of the four speakers is the observer?

06 Oct 2014 Por


A is the thief


PUZZLE 3   Who Left the Cell Door Open *

When Socrates was imprisoned for being a disturbing influence, he was held in high esteem by his guards. All four of them hoped that something would occur that would facilitate his escape. One evening, the guard who was on duty intentionally left the cell door open so that Socrates could leave for distant parts.

Socrates did not attempt to escape, as it was his philosophy that if you accept society’s rules, you must also accept its punishments. However, the open door was considered by the authorities to be a serious matter. It is not clear which guard was on duty that evening. The four guards make the following statements in their defense:

      A.   1. I did not leave the door open.

2. C was the one who did it.

   B. 1. I was not the one who was on duty that evening.                   

       2. A was on duty.

   C. 1. B was the one who was on duty that evening.

       2. I hoped Socrates would escape.

   D. 1. I did not leave the door open.

       2. I am not surprised that Socrates did not attempt to                


Considering that, in total, three statements are true and five statements are false, which guard is guilty?

01 Oct 2014 Por




It is B's mule


PUZZLE 2   Theft of Homer’s writings *

Valuable writings of Homer are missing. They have been stolen from the library in the Parthenon by one of three suspects. The three are questioned by Socrates, and each makes one true and two false statements, as follows:

A.                          1. I did not even know that Homer’s books were in the Parthenon.

       2. C is innocent.

       3. B must be the thief.

B.                          1. I did not do it.

2. A is innocent.

3. A’s first statement is true.

C.                          1. Homer’s writings are not worth taking.

2. A did it; or else it was B.

       3. I would never consider such a dishonest thing.


Which one is guilty?

24 Sep 2014 Por

Ya tenéis disponibles los certificados del PET y FIRST en la academia para recogerlos cuando queráis. ¡¡Enhorabuena a todos!!

Seguimos preparando alumnos para las próximas convocatorias del PET y FIRST. Anímate a dar el siguiente paso.