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1.Number Locks?
4 and Left
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0 and Insert
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7 and Home
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6 and Page Up
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On the Number Pad on some keyboards, the numbers can also do other commands, but 6 is Right, not Page Up.
2.Excelling in Locking values, even while moving.
£
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$
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%
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*
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In Excel, using $ before a grid coordinate means it locks that half of the coordinate, even if it is moved parallel to that coordinate.
3.Not So Colourful Now, Are Ya?
Carnelian
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Onyx
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Obsidian
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Diopside
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Carnelian is the only one of these gemstones which can't be black.
4.Jumping to be Inclusive. Only for 24 hours though.
2400
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2700
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1700
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1900
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The Year 2400 will be a leap year, and the others will/were not.
5.You need to look again.
I On Oak Gal
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Lo, A Kin Ago
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Koala, Go In
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A Goal Ink
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'A Goal Ink' is not an anagram of 'Look Again'.
6.Ordering
Oct, Hept, Hex, Pent, But, Prop
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8, 5, 4, 7, 6, 3
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T, F, F, S, S, N
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Tri, Squ, Pen, Hex, Hep, Oct
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The others have an order of some sort: 'Tri, Squ, Pen, Hex, Hep, Oct' is the first 3 letters of shapes with 3, 4, 5, 6... sides; '8, 5, 4, 7, 6, 3' is 3 through 8 in alphabetical order; 'Oct, Hept, Hex, Pent, But, Prop' is the prefixes of Alkanes/Alkenes between 3 and 8 in reverse order. The other should be T, F, F, S, S, E: To symbolise 3 through 8.
7.How lucky are you? Or speed of counting?
6, 6, 6, 6, 6, 5, 6, 6, 6, 6, 6, 6, 6
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12, 14, 8, 9, 9, 25
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1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, -1
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7, 14, 21, -41, 20, 21, 21, 13
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All the other number strings have a sum of 77.
8.Wake up Eight for me, please.
Vinculum
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Napla
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Obelus
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Lemniscate
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The name of the ∞ symbol is the Lemniscate.
9.Don't count on what you can see.
Space Space Space
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Space Space Space Space Space Space Space Space Space
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Space Space Space Space Space Space Space Space Space Space Space Space
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Space Space Space Space Space Space
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There are 6 spaces in the statement.
10.I square a positive real number, subtract 8 off of it, square root it then re add the 8 to it. I ended with ten. What's the starting number?