All bonus details (wagering requirement, bonus lifetime, minimum deposit and etc) for every bonus can be found in the bonus information.

The different casino games counted differently to complete the bonus wagering terms.
Slot games - 100% of your real bets
Card games, roulette, poker, and video poker - 5% of your real bets
Games with live dealers - not counted for wagering

You can check it on the Balance page for your active bonus.

Yes, you can put your active bonuses on pause and start to wager another one. But remember that the lifetime for paused bonus won’t be paused and that bonus will expire on time.

A maximum bet amount for slot games with an active bonus is limited during wagering by 5 EUR or an equal amount of the respective currency.
A maximum bet amount for live games with an active bonus is limited during wagering by 10 EUR or an equal amount of the respective currency.

The maximum winnings resulting from any no-deposit offer are capped at 50 EUR or an equal amount of the respective currency if not stated otherwise.

You can’t request a withdrawal until the wagering requirement for a bonus is completed.

You have the right to cancel any bonuses without proceeding to their wagering and without any loss of their own funds. But keep in mind that while playing with a bonus you’re playing on your real balance first.

The players are not allowed to abuse the bonus offers. In case of such abuse, the casino has the right to prohibit the players from receiving any bonuses and to cancel any winnings received using bonus funds, both at the moment of wagering and after it.