What series of signs in the three blanks will make the following equation hold true?

\[ 3 \; \square \; 4 \; \square \; 5 \; \square \; 6 = 10\]

What series of signs and parentheses on the left side will make the following equality hold true?

\[ 120\; \square \; 2 \; \square \; 3 \; \square \; 4 = 5\]

\[8 \; \square \; 4 \; \square \; 2 \; \square \; 1\]

If we fill in the above blanks using only the operators \(\times \) and/or \(\div\), is it true that the resultant number is always an integer?

\[2 \; \square \; 2 \; \square \; 2 \; \square \; 2 \]

If we fill in the above blanks using only the operators \(\times \) and/or \(\div\), which of the following \( \color{red} { \text{cannot} } \) be a resultant number?

What series of signs in the three blanks will \( \color{red} { \text{not} } \) make the following equation true?

\[ 7 \; \square \; 7 \; \square \; 7\; \square \; 7 = 49\]

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