Problem: In some countries anti-Masonry is often related to antisemitism and anti-Zionism. For example, In 1980, the Iraqi legal and penal code was changed by Saddam Hussein's ruling Ba'ath Party, making it a felony to "promote or acclaim Zionist principles, including Freemasonry, or who associate [themselves] with Zionist organisations". Professor Andrew Prescott of the University of Sheffield writes: "Since at least the time of the Protocols of the Elders of Zion, antisemitism has gone hand in hand with anti-masonry, so it is not surprising that allegations that 11 September was a Zionist plot have been accompanied by suggestions that the attacks were inspired by a masonic world order".
Who change the Iraqi legal and penal code in 1980?
The answer is the following: Saddam Hussein's ruling Ba'ath Party

Problem: The Finnish and Baltic invasions began a deterioration of relations between the Soviets and Germany. Stalin's invasions were a severe irritant to Berlin, as the intent to accomplish these was not communicated to the Germans beforehand, and prompted concern that Stalin was seeking to form an anti-German bloc. Molotov's reassurances to the Germans, and the Germans' mistrust, intensified. On June 16, as the Soviets invaded Lithuania, but before they had invaded Latvia and Estonia, Ribbentrop instructed his staff "to submit a report as soon as possible as to whether in the Baltic States a tendency to seek support from the Reich can be observed or whether an attempt was made to form a bloc."
Why did the Germans distrust the soviet agenda?
The answer is the following: Stalin's invasions were a severe irritant

Problem: Railways must operate at variable speeds. Until the mid 1980s this was only practical with the brush-type DC motor, although such DC can be supplied from an AC catenary via on-board electric power conversion. Since such conversion was not well developed in the late 19th century and early 20th century, most early electrified railways used DC and many still do, particularly rapid transit (subways) and trams. Speed was controlled by connecting the traction motors in various series-parallel combinations, by varying the traction motors' fields, and by inserting and removing starting resistances to limit motor current.
What is speed limit for railways?
The answer is the following: variable speeds

Problem: In addition to singing words, some a cappella singers also emulate instrumentation by reproducing instrumental sounds with their vocal cords and mouth. One of the earliest 20th century practitioners of this method were The Mills Brothers whose early recordings of the 1930s clearly stated on the label that all instrumentation was done vocally. More recently, "Twilight Zone" by 2 Unlimited was sung a cappella to the instrumentation on the comedy television series Tompkins Square. Another famous example of emulating instrumentation instead of singing the words is the theme song for The New Addams Family series on Fox Family Channel (now ABC Family). Groups such as Vocal Sampling and Undivided emulate Latin rhythms a cappella. In the 1960s, the Swingle Singers used their voices to emulate musical instruments to Baroque and Classical music. Vocal artist Bobby McFerrin is famous for his instrumental emulation. A cappella group Naturally Seven recreates entire songs using vocal tones for every instrument.
What is the name of the ABC Family show whose theme is entirely a capella?
The answer is the following:
The New Addams Family