Thanks Priya
The link in app was not working but when I gone to Chrome with same site it worked.
Now I will try to solve them by myself.
Any tips how to solve them means time interval I take.

If you're preparing for next year, you still have time.
So you may solve each and every question peacefully and try to solve it completely yourself before looking into solutions.
If you want to solve them as mock tests, do it timed, creating exam environment with no disturbance and analyze your mistakes.

Yes
I will do the same

Thanks