Lo resolvi de la siguiente manera:
//1
let count = 1;
while( count <= 10 ){
console.log(`Iteracion numero ${count}`)
count++;
}
//2
let count2 = 10;
while( count2 >= 0){
console.log(`Iteracion numero ${count2}`);
count2--;
}
//3
let count3 = prompt('Ingrese un numero para cuenta regresiva');
while( count3 >= 0 ){
console.log(count3);
count3--;
}
//4
let numero = prompt('Ingrese un numero para cuenta progresiva');
count4 = 1;
while (count4 <= numero)
{
console.log(count4);
count4++;
}
