Idea for the Q&A below: To answer the above question, the relevant sentence is: The signing of the United States Declaration of Independence occurred (primarily) on August 2, 1776 at the Pennsylvania State House (Independence Hall) in Philadelphia, Pennsylvania.
Q: Passage: The signing of the United States Declaration of Independence occurred (primarily) on August 2, 1776 at the Pennsylvania State House (Independence Hall) in Philadelphia, Pennsylvania. The 56 delegates to the Second Continental Congress represented the 13 former colonies which had declared themselves the "United States of America," and they endorsed the Declaration of Independence which the Congress had approved on July 4, 1776. The Declaration proclaimed that the Thirteen Colonies then at war with Great Britain were now sovereign states and thus no longer a part of the British Empire. The signers' names are grouped by state, with the exception of President of the Continental Congress John Hancock; the states are arranged geographically from north to south.

Question: Based on this passage, where was the us declaration of independence signed?
A: the Pennsylvania State House ( Independence Hall ) in Philadelphia , Pennsylvania

Idea for the Q&A below: The relevant information to answer the above question is: "Somebody's Watching Me" is a song recorded by American singer Rockwell, released by the Motown label on January 14, 1984, as the lead single from his debut studio album of the same name.
Q: "Somebody's Watching Me" is a song recorded by American singer Rockwell, released by the Motown label on January 14, 1984, as the lead single from his debut studio album of the same name. Rockwell's debut single release, the song features guest vocals by brothers Michael Jackson (in the chorus) and Jermaine Jackson (additional backing vocals).

Based on this passage, who sings i always feel like someone is watching me?
A: American singer Rockwell

Idea for the Q&A below: This is the relevant information: The Russian chemist Dmitri Mendeleev was the first scientist to make a periodic table similar to the one used today.
Q: The Russian chemist Dmitri Mendeleev was the first scientist to make a periodic table similar to the one used today. Mendeleev arranged the elements by atomic mass, corresponding to relative molar mass. It is sometimes said that he played' chemical solitaire' on long train journeys, using cards with various facts about the known elements. On March 6, 1869, Mendeleev gave a formal presentation, The Dependence Between the Properties of the Atomic Weights of the Elements, to the Russian Chemical Society. In 1869, the table was published in an obscure Russian journal and then republished in a German journal, Zeitschrift fur Chemie. In it, Mendeleev stated that:

Answer this question based on the passage: the first list of elements and their characteristics was written by?
A: Dmitri Mendeleev

Idea for the Q&A below: To answer this question, we should know that: The Chairman is appointed by the Speaker of Lok Sabha.
Q: Context: The PAC is formed every year with a strength of not more than 22 members of which 15 are from Lok Sabha, the lower house of the Parliament, and 7 from Rajya Sabha, the upper house of the Parliament. The term of office of the members is one year. The Chairman is appointed by the Speaker of Lok Sabha. Since 1967, the chairman of the committee is selected from the opposition. Earlier, it was headed by a member of the ruling party. Its chief function is to examine the audit report of Comptroller and Auditor General (CAG) after it is laid in the Parliament. CAG assists the committee during the course of investigation. None of the 22 members shall be a minister in the government.

Question: who appoints the chairman of public accounts committee?
A: the Speaker of Lok Sabha