How to say for which in different languages

You can say for which as pourquoi, à quoi bon in the following countries: Benin; Burkina Faso; Burundi; Central African Republic; Chad; Democratic Republic of the Congo; Djibouti; France; French Guiana; French Polynesia; French Southern Territories; Gabon; Guadeloupe; Guinea; Ivory Coast; Madagascar; Mali; Martinique; Mayotte; Monaco; Niger; Republic of the Congo; Reunion; Saint Barthelemy; Saint Martin; Saint Pierre and Miquelon; Senegal; Togo;

You can say for which as que, a qué in the following countries: Argentina; Bolivia; Chile; Colombia; Costa Rica; Cuba; Dominican Republic; Ecuador; El Salvador; Equatorial Guinea; Guatemala; Honduras; Mexico; Nicaragua; Panama; Paraguay; Peru; Spain; Uruguay; Venezuela;

You can say for which as para que in the following countries: Angola; Brazil; Cabo Verde; Guinea-Bissau; Mozambique; Portugal; Sao Tome and Principe;

You can say for which as 什么 in the following countries: China; Hong Kong; Macao; Taiwan;

You can say for which as wozu, wofür, woran in the following countries: Austria; Germany; Liechtenstein; Switzerland;

You can say for which as perché, che vale in the following countries: Italy; San Marino;

You can say for which as vad in the following countries: Aland Islands; Sweden;

You can say for which as na co in the following countries: Czechia;

You can say for which as hvad in the following countries: Denmark;

You can say for which as mire in the following countries: Hungary;

You can say for which as к чему in the following countries: Russia;

You can say for which as neden in the following countries: Turkey;

You can say for which as навіщо in the following countries: Ukraine;