Who has become the first person to spend 1,000 days in space?
Russian cosmonaut Oleg Kononenko achieved a historic milestone by becoming the first person to spend 1,000 days in space, a feat that showcases his dedication and endurance in the field of space exploration.
6 16 ? 244 1,245 7,506 52,591
...54 58 85 ? 226 262
...1, 27, ?, 343, 729, 1331
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
4 7 6
15 ? 21
44 68 60
If 6 4 x 5.75 9,
Then, (x²-1) = ?
...3456 1728 2592 6485 22680 102060
...Select the number from among the given options that can replace the question mark (?) in the following series.
64, 60, 52, 40, ?, 4
19 20 29 54 103 ?
100 180 294 448 648 ?
398 308 228 158 98 ?
