How to tell the upper line of a Spring Festival couplet from the lower
How to tell the upper line of a spring couplet (春联, 春聯) from the lower, which side each goes on, why the Mandarin to...
Guides & How-tos · Worked examples · Real numbers
Do it right, with real numbers
Step-by-step how-tos, head-to-head comparisons and honest roundups — every guide worked through with current figures, then backed by a RECATOOLS calculator or AI-directory entry so you can act on it.
510 guides published
17 topic areas
Latest guide Oct 2026
Statistics
35
Health & Wellness
33
Cybersecurity
30
Business
19
Privacy & Data
17
Consumer Tech
14
ASEAN Tech
13
Personality
9
Cloud & Infra
8
Cyber Threat Intel
7
Sustainability
5
Advertisement
Singlish and Manglish words in the Oxford English Dictionary
Which Singapore and Malaysian English words the OED has recorded and when: 21 Singapore entries in 2016 and a second wav...
Writing a xiangqi move in Chinese, WXF and ICCS notation
How Chinese chess (象棋) moves such as 炮二平五 are written, why Red and Black number the files differently, when 前 and...
What the 12 digits of a Malaysian IC number record
What each part of a MyKad number (nombor IC) records: the date of birth with no century, JPN's state and country codes i...
Taiwan's 22 counties and cities, read from the household register
Taiwan's 22 counties and cities (台灣22縣市) on the household register for August 2026: population, area and density for...
Public holidays 2027 and the best days to take leave in Singapore, Malaysia and Hong Kong
The 2027 public holidays in Singapore, Malaysia and Hong Kong, the longest breaks a few days of leave can buy in each, w...
How many weeks you have left, by Singapore and Malaysian life tables
A Singapore resident aged 65 can expect about 1,127 more weeks on the 2025 life tables, 141 more than the figure at birt...
How Chinese internet slang is made, and what the annual word lists keep
How Chinese internet slang is built, from yyds and 520 to 内卷 and 躺平, and what China's three annual 网络流行语 lists...
Chinese measure words ranked by how often they are actually used
How often 个 really fills the measure-word slot in Chinese text, which two dozen classifiers (量词) cover nine tenths of...
Hong Kong's 18 districts by population, density and council seats
Hong Kong's 18 districts (18區) on the census department's mid-2025 figures: which are most crowded, how the regions sha...
Taiwan labour and health insurance deductions, grade by grade
What comes off a Taiwan salary for labour, employment and health insurance in 2026, why it is never salary times a rate,...
Fan Tai Sui 2027 and why the lists of signs disagree
Four of five counting schemes name the same four animals for 犯太岁 in the 2027 Goat year: the Goat, Ox, Dog and Rat. Wh...
Advertisement